MikaStars39/nano-eval huggingface dataset:
An ammeter $A$ of finite resistance, and a resistor $R$ are joined in series to an ideal cell $C$. A potentiometer $P$ is joined in parallel to $R$. The ammeter reading is $I_{0}$ and the potentiometer reading is $V_{0}$. $P$ is now replaced by a voltmeter of finite resistance. The ammeter reading now is I and the voltmeter reading is $V$.

Options:
A. I < I_{0}, V < V_{0}
B. $$I > I_{0}, V < V_{0}$$
C. $$I < I_{0}, V =V_{0}$$
D. I > I_{0}, V = V_{0}
E. I < I_{0}, V > V_{0}
F. $$I = I_{0}, V < V_{0}$$
G. I = I_{0}, V > V_{0}
Answer: B
A car moving with a velocity of 72 KMPH stops engine just before ascending an inclined road. If 25% of energy is wasted in overcoming friction,the car rises to a height of $ (g=10ms^2) $

Options:
A. 10 m
B. 20 m
C. 7 m
D. 6 m
E. 15 m
F. 12 m
G. 8 m
H. 5 m
I. 9 m
J. 7.5 m
Answer: H
A sphere of radius $R$ and relative density $4$ is hanging with the help of a string such that it remains just inside water. The ratio force exerted by the liquid on upper and lower half of the sphere is (take ${P}_{atm}=0$)

Options:
A. $$2:5$$
B. $$1:7$$
C. 1:4
D. 1:6
E. $$1:3$$
F. 2:3
G. 1:8
H. 1:2
I. $$1:5$$
Answer: E
A particle of mass m is moving with amplitude a under the influence of force F = -kx . The particle passes through the mean position at t=5 s . The position of the particle at any instant will be :

Options:
A. $$x=\quad asin\sqrt { \frac { k }{ m } } (t-5)$$
B. $$x=\quad asin\sqrt { \frac { m }{ k } } (t+5)$$
C. x=\quad asin\sqrt { \frac { k }{ m } } (t+10)
D. $$x=\quad asin\sqrt { \frac { k }{ m } } t$$
E. $$x=\quad asin\sqrt { \frac { k }{ m } } (t+5)$$
F. x=\quad asin\sqrt { \frac { k }{ m } } (t-10)
G. x=\quad asin\sqrt { \frac { m }{ k } } (t-10)
H. x=\quad asin\sqrt { \frac { m }{ k } } t
I. x=\quad asin\sqrt { \frac { k }{ m } } (t+15)
J. x=\quad asin\sqrt { \frac { k }{ m } } (t-15)
Answer: D
A sounding body of negligible dimension emitting a frequency of 150 Hz is dropped from a height. During its fall under gravity it passes near a balloon moving up with a constant velocity of 2 m/s one second after it stared to fall. The difference in the frequency observed by the man in balloon just before and just after crossing the body will be : (Given that - velocity of sound $= 300 m/s;\,\, g = 10 m/s^{2}$)

Options:
A. 10
B. 18
C. 8
D. 4
E. 16
F. 11
G. 14
H. 6
I. 12
J. 13
Answer: I
Muon ($\mu ^-$) is a negatively charged ($|q|=|e|$) particle with a mass $m_\mu=200 m_e$, where $m_e$ is the mass of the electron and $e$ is the electronic charge. If $\mu ^-$ is bound to a proton to form hydrogen like atom, identify the correct statements.
(A) Radius of the muonic orbit is $200$ times smaller than that of the electron.
(B) The speed of the $\mu ^-$ in the $n^{th}$ orbit is $\frac {1}{200}$ times that of the electron in the $n^{th}$ orbit.
(C) The ionization energy of a muonic atom is $200$ times more than that of a hydrogen atom.
(D) The momentum of the muon in the $n^{th}$ orbit is $200$ times more than that of the electron.

Options:
A. (A), (B), (D)
B. (A), (C), (D)
C. (A), (B), (C)
D. (A), (B), (C), (D)
E. (B), (D)
F. (A), (C), (B)
G. (A), (C)
H. (C), (D)
I. (B), (C)
J. (B), (C), (D)
Answer: A
$6.0g$ weak acid $HA(mol.wt.=60g/mol.)$ is dissolved in water and formed $10m^3$ solution.If $K_{a(HA)}=10^{-9}$, then $pOH$ of solution is: [Given: $log4=0.6$]

Options:
A. Greater than $7.3$
B. Exactly $7$
C. Greater than $5.4$ and less than $5.7$
D. Greater than $7.0$ and less than $7.3$
E. Greater than $6.0$ and less than $6.4$
F. Greater than $6.7$ and less than $7.0$
G. Greater than $6.7$ and less than $7.3$
H. Greater than $7.3$ and less than $7.6$
I. Greater than $5.7$ and less than $6.0$
J. Greater than $6.4$ and less than $6.7$
Answer: B
Pressure of $10$ moles of an ideal gas is changed from $2\ atm$ to $1\ atm$ against constant external pressure without change in temperature. If surrounding temperature ($300\ K$) and pressure ($1\ atm$) always remains constant then calculate total entropy change ($\Delta {S}_{system}+\Delta {S}_{surrounding}$) for given process.[Given: $\ln{2}=0;70$ and $R=8.0J/mol/K$]

Options:
A. 18J/K
B. 15J/K
C. 20J/K
D. None of these
E. 19J/K
F. $$16J/K$$
G. $$56J/K$$
H. 12J/K
I. $$14J/K$$
Answer: F
A glass prism has a right-triangular cross-section ABC, with $ngle$A$=90^o$. A ray of light parallel to the hypotenuse BC and incident on the side AB emerges grazing the side AC. Another ray, again parallel to the hypotenuse BC, incident on the side AC suffers total internal reflection at the side AB. Find the range of  the refractive index $\mu$ of the material of the prism?

Options:
A. \sqrt{\dfrac{3}{2}} < \mu < \sqrt{2.1}
B. \sqrt{\dfrac{3}{2}} < \mu < \sqrt{2.5}
C. $$\mu > \sqrt 3$$
D. \sqrt{\dfrac{3}{2}} < \mu < \sqrt 3
E. $$\sqrt{\dfrac{3}{2}} < \mu < \sqrt 2$$
F. \sqrt{\dfrac{3}{2}} < \mu < \sqrt{2.75}
G. \sqrt{\dfrac{3}{2}} < \mu < \sqrt{2.25}
H. $$\sqrt 2 < \mu < \sqrt 3$$
I. \sqrt{\dfrac{3}{2}} < \mu < \sqrt{3}
J. $$\mu < \sqrt{\dfrac{3}{2}}$$
Answer: E
Two coils have a mutual inductance of $5mH.$ Current changes in the first coil according to the equation $I = {I_o}\cos \omega t$ where ${I_4} = 10A\,\,and\,\,\omega  = 100\pi \,rad/s.$ maximum value of $e.m.f$ induced in the second coil is

Options:
A. 8\pi \,\,volt
B. 6\pi \,\,volt
C. 7\pi \,\,volt
D. $$5\pi \,\,volt$$
E. 3\pi \,\,volt
F. 10\pi \,\,volt
G. 9\pi \,\,volt
H. $$\pi \,\,volt$$
I. $$2\pi \,\,volt$$
J. $$4\pi \,\,volt$$
Answer: I
A solid cylinder and a hollow cylinder of the same mass and radius, both initially at rest, roll down the same inclined plane without slipping. Choose the correct options.

Options:
A. The solid cylinder reaches the bottom faster, but with more kinetic energy.
B. The two cylinders reach the bottom with different kinetic energies, but the solid cylinder reaches the bottom first.
C. The solid cylinder reaches the bottom faster, but with equal kinetic energy.
D. Their kinetic energies at the bottom are equal.
E. The hollow cylinder reaches the bottom with more kinetic energy.
F. The hollow cylinder reaches the bottom first
G. The hollow cylinder reaches the bottom faster, but with less kinetic energy.
H. The solid cylinder reaches the bottom faster, but with less kinetic energy.
Answer: D
A charged shell of radius R carries a total charge Q. Given $\phi$ as the flux of electric field through a closed cylindrical surface of height h, radius r and with its centre same as that of the shell. Here center of cylinder is a point on the axis of the cylinder which is equidistant from its top and bottom surfaces. Which of the following option(s) is are correct? $[arepsilon_0$ is the permittivity of free space$]$

Options:
A. If $h < 2R$ and $r=\dfrac{3R}{5}$ then $\phi =\dfrac{Q}{5arepsilon_0}$
B. If $h > 2R$ and $r > R$ then $\phi =\dfrac{Q}{3>\<^\arepsilon_0}$
C. If $h > 2R$ and $r=\dfrac{4R}{5}$ then $\phi =\dfrac{Q}{5arepsilon_0}$
D. If $h< \dfrac{8R}{5}$ and $r=\dfrac{3R}{5}$ then $\phi =0$
E. If $h > 2R$ and $r > R$ then $\phi =\dfrac{Q}{2arepsilon_0}$
F. If $h > 2R$ and $r > R$ then $\phi =\dfrac{Q}{arepsilon_0}$
G. If $h > 2R$ and $r > R$ then $\phi =\dfrac{Q}{4\varepsilon_0}$
H. If $h > 2R$ and $r > R$ then $\phi =\dfrac{Q}{2\arepsilon_0}$
I. If $h > 2R$ and $r > R$ then $\phi =\dfrac{Q}{4vakarepsilon_0}$
J. If $h > 2R$ and $r > R$ then $\phi =\dfrac{Q}{3\varepsilon_0}$
Answer: F
Assume that the number of hole-electron pair in an intrinsic semiconductor is proportional to $ e^{\Delta E / 2kT}$. Here $\Delta E =$ energy gap and $k= 8.62 \times 10^5 eV/K$. The energy gap for silicon is $1.1eV$. The ratio of electron hole pairs at $300K$ and $400K$ is

Options:
A. $$e^{5.104 \times10^{-8}}$$
B. e^{5.104 \times 10^{-9}}
C. $$e^{-5}$$
D. $$e$$
E. $$e^{2}$$
F. e^{5.104 \times 10^{-6}}
G. e^{5.104 \times 10^{-7}}
H. e^{5.104 \times 10^{-10}}
I. e^{5.104 \times 10^{-5}}
J. e^{5.104 \times 10^{-11}}
Answer: A
How many times larger is the spacing between the energy levels with $n=3$ and $n=4$ then the spacing between the energy levels with $n=8$ and $n=9$ for a hydrogen like atom or ion ?

Options:
A. $$2.43$$
B. 0.46
C. 0.42
D. $$14.82$$
E. 0.45
F. 0.36
G. 0.43
H. $$0.41$$
I. 0.44
J. $$0.71$$
Answer: H
Arrange the following aqueous solutions in increasing order of their freezing points.(i) 0.1 M $KCN$ (ii) 0.2 M $CH_3-CH=CH_2$ (iii) 0.3 M Urea (iv) 0.2 M $CaCl_2$

Options:
A. (ii) < (i) < (iv) < (iii)
B. (iii) < (iv) < (i) < (ii)
C. (i) < (ii) < (iv) < (iii)
D. (iv) = (iii) < (ii) < (i)
E. (iv) < (iii) < (i) = (ii)
F. (iv) < (i) < (iii) < (ii)
G. (iv) < (iii) < (i) < (ii)
H. (iv) < (ii) < (i) < (iii)
I. (iii) < (iv) < (i) = (ii)
J. (i) < (iii) < (iv) < (ii)
Answer: E
If solution of differential equation $\dfrac{dy}{dx}=\dfrac{1+x}{2y}$ is a conic passing through point $(1,1)$, then its eccentricity, is

Options:
A. \sqrt{\dfrac{1}{4}}
B. \sqrt{\dfrac{1}{2}}
C. \sqrt{\dfrac{2}{3}}
D. $$\sqrt{\dfrac{3}{2}}$$
E. $$\sqrt{\dfrac{5}{3}}$$
F. \sqrt{\dfrac{4}{3}}
G. \sqrt{\dfrac{1}{3}}
H. $$1$$
I. \sqrt{\dfrac{3}{4}}
J. $$0$$
Answer: J
The wave function for an orbital is $H-$atom is given as:$\Psi =\left( \dfrac { \sqrt { 2 }  }{ 81\sqrt { \pi  }  }  \right) { \left( \dfrac { 1 }{ { a }_{ 0 } }  \right)  }^{ \dfrac { 2 }{ 3 }  }\left( 6-\dfrac { r }{ { a }_{ 0 } }  \right) { \left( \dfrac { r }{ { a }_{ 0 } }  \right)  }^{ -\dfrac { r }{ 3{ a }_{ 0 } }  }.\sin { \theta  } \sin { \phi  } $The orbital is:

Options:
A. 3p
B. $$2p$$
C. $$2s$$
D. 3d
E. 4s
F. 4p
G. $$3s$$
Answer: C
A particle starts SHM at time t = 0. Its amplitude is A and angular frequency is $\omega$. At time t = 0 its kinetic energy is E/4 where E is the maximum kinetic energy. Assuming potential energy to be zero at a mean position, then the displacement-time equation of the particle can be written as

Options:
A. x = A cos [$\omega$t + ($\pi$/3)
B. x = A cos [$\omega$t - ($\pi$/4)]
C. x = A cos [$\omega$t + ($\pi$/6)
D. x = A cos [$\omega$t - ($\pi$/6)
E. x = A cos [$\omega$t + (2 $\pi$/3)]
F. x = A cos [\omega t + (\pi/3)]
G. x = A cos [$\omega$t + ($\pi$/4)
H. x = A cos [$\omega$t - ($\pi$/3)]
I. x = A cos [$\omega$t + ($\pi$/6)]
J. x = A cos [$\omega$t - (2 $\pi$/3)]
Answer: D
A rubber cord 10 m long is suspended vertically. How much does it stretch under its own weight. ( [Density of rubber is $1500 (kg / m^3), Y = 5 \times 10^8 N/m^2)$

Options:
A. 0.3 mm
B. 0.135 mm
C. 0.25 mm
D. 0.03 mm
E. 0.15 mm
F. 0.2 mm
G. 0.18 mm
H. 0.015 mm
I. 0.12 mm
J. 0.225 mm
Answer: E
Water is drawn from a well in a $5\ kg$ drum of capacity $55\ L$ by two ropes connected to the top of the drum. The linear mass density of each rope is $0.5\ kgm^{-1}$. The work done in lifting water to the ground from the surface of water in the well $20\ m$ below is $[g=10\ ms^{-2}]$

Options:
A. $$1.4\times 10^{4}\ J$$
B. 1.45 \times 10^{4}\ J
C. 1.6 \times 10^{4}\ J
D. 1.42 \times 10^{4}\ J
E. $$9.8\times 10\times 6\ J$$
F. 1.2 \times 10^{4}\ J
G. $$18\ J$$
H. 1.7 \times 10^{4}\ J
I. 1.3 \times 10^{4}\ J
J. $$1.5\times 10^{4}\ J$$
Answer: A
Find the potential difference $arphi A$ - $arphi B$ between the plates of a capacitor $C$ in the circuit shown in the figure , When it reaches the steady state. The sources have emf's $E_1=4.0 V$ and $E_2=1.0V$ and the resistances are equal to $R_1=10\Omega$,  $R_2=20\Omega$ and  $R_3=30\Omega$. The internal resistance of the sources are negligible:

Options:
A. $$2V$$
B. $$-1V$$
C. -3V
D. -4V
E. $$-2V$$
F. 3V
G. 1V
Answer: B
A ball of mass $50g$ is dropped from a height of $20m$. A boy on the ground hits the ball vertically upwards with a bat with an average force of $200N$, so that it attains a vertical height of $45m$. The time for which the ball remains in contact with the bat is (Take $g=10m/{s}^{2}$)

Options:
A. 1/120th of a second
B. 1/40th of a second
C. 1/50th of a second
D. 1/30th of a second
E. 1/35th of a second
F. 1/70th of a second
G. 1/80th of a second
H. 1/20th of a second
I. 1/60th of a second
J. 1/45th of a second
Answer: B
An open pipe is in resonance in 2nd harmonic with frequency ${ f }_{ 1 }$ Now one end of the tube is closed and frequency is increased to ${ f }_{ 2 }$ such that the resonance again occurs in nth harmonic, Choose the correct option

Options:
A. n=3,{ f }_{ 2 }=\dfrac { 2 }{ 4 } { f }_{ 1 }
B. n=3, { f }_{ 2 }=\dfrac { 9 }{ 4 } { f }_{ 1 }
C. $$n=3,{ f }_{ 2 }=\dfrac { 5 }{ 4 } { f }_{ 1 }$$
D. $$n=3,{ f }_{ 2 }=\dfrac { 3 }{ 4 } { f }_{ 1 }$$
E. $$n=5,{ f }_{ 2 }=\dfrac { 5 }{ 4 } { f }_{ 1 }$$
F. n=3, { f }_{ 2 }=\dfrac { 7 }{ 4 } { f }_{ 1 }
G. n=3,{ f }_{ 2 }=\dfrac { 1 }{ 4 } { f }_{ 1 }
H. n=3, { f }_{ 2 }=\dfrac { 11 }{ 4 } { f }_{ 1 }
I. n=3,{ f }_{ 2 }=\dfrac { 6 }{ 4 } { f }_{ 1 }
J. $$n=5,{ f }_{ 2 }=\dfrac { 3 }{ 4 } { f }_{ 1 }$$
Answer: D
The diagram below describes the experimental setup for a variation of the standard Young's Double Slit Experiment to demonstrate interference of light wave. A plane wave-front of monochromatic visible light wave is incident obliquely on the opaque screen with two identical slits $S_1$ and $S_2$ at an angle $\theta = 37^0$ of as shown in the figure $(\sin  37^0 = 0.6)$. Now a "thin refractive slab" of thinkness $t$ and refractive index $\mu =1,75$ is placed in front of the slit $S_2$. Given that the distance between the slit $d=10\,mm$ and the screen in front is placed at a very large distance $D(D>>d)$, calculate the thickness of the slab $t$ in mm such that the "zeroth order bright fringe" for the interference pattern should occur at the symmetry point $"O"$ on the screen.

Options:
A. $$8$$
B. 12
C. $$48$$
D. 16
E. 24
F. $$18$$
G. 6
H. $$2$$
I. 14
Answer: H
For a transistor amplifier in common emitter configuration for a load impedance of $1 k\Omega $ $(h_{fe}=50; h_{oe}=25 \mu AV^{-1})$, the current gain is fro:

Options:
A. $$-5.2$$
B. $$-15.7$$
C. -4.2
D. $$-48.78$$
E. -12.5
F. -5.5
G. -7.1
H. -6.3
I. -10.4
J. $$-24.8$$
Answer: A
A definite mass of $ H_{2}O_{2} $ is oxidized by excess of acidified $ KMnO_{4} $ and acidified $ K_{2}Cr_{2}O_{7} $, in separate experiments. Which of the following is/are correct statements? 
(K = 39, Cr = 52, Mn = 55 )

Options:
A. If equal volumes of both the solutions are used for complete reaction, then the molarities of $ KMnO_{4} $ and $ K_{2}Cr_{2}O_{7} $ solutions are in $3:4$ ratio.
B. If equal volumes of both the solutions are used for complete reaction, then the molarities of $ KMnO_{4} $ and $ K_{2}Cr_{2}O_{7} $ solutions are in $7:5$ ratio.
C. Mass of $ K_{2}Cr_{2}O_{7} $ used up will be greater than that of $ KMnO_{4} $
D. Moles of $ KMnO_{4} $ used up will be greater than that of $ K_{2}Cr_{2}O_{7} $
E. If equal volumes of both the solutions are used for complete reaction, then the molarities of $ KMnO_{4} $ and $ K_{2}Cr_{2}O_{7} $ solutions are in $5:6$ ratio.
F. If equal volumes of both the solutions are used for complete reaction, then the molarities of $ KMnO_{4} $ and $ K_{2}Cr_{2}O_{7} $ solutions are in $4:5$ ratio.
G. If equal volumes of both the solutions are used for complete reaction, then the molarities of $ KMnO_{4} $ and $ K_{2}Cr_{2}O_{7} $ solutions are in $6:5$ ratio.
H. If equal volumes of both the solutions are used for complete reaction, then the molarities of $ KMnO_{4} $ and $ K_{2}Cr_{2}O_{7} $ solutions are in $5:4$ ratio.
I. If equal volumes of both the solutions are used for complete reaction, then the molarities of $ KMnO_{4} $ and $ K_{2}Cr_{2}O_{7} $ solutions are in $8:5$ ratio.
Answer: G
A copper disc of radius 10 cm is rotating in magnetic field B = 0.4 gauss with 10 rev. / sec. What will be potential difference across peripheral points of disc.

Options:
A. 15 \pi u V
B. 10 \pi u V
C. zero
D. $$ 20 \pi u V $$
E. 25 \pi u V
F. 30 \pi u V
G. $$ 5 \pi u V $$
Answer: C
An element 'X' present in its ground state, the value of principal and azimuthal quantum number for the last electron of element "X" is $n = 3$ and $l = 1$ and spin multiplicity for a given element is $4$. Then according to the given information correct statement(s) regarding given element "X" is/are :

Options:
A. Element 'X' has a quarter-filled valence shell.
B. Element 'X' has a partially filled d subshell.
C. Element X" has full filled valence shell.
D. None of the above
E. Element 'X' has a half-filled valence shell.
F. In the valence shell of element X' electron density is symmetrically distributed.
G. Element 'X' is 3rd period and 14th group element.
H. Element 'X' is $3rd$ period and $13th$ group element
Answer: F
Surface-catalysed reactions that are incorporated by the product, obey the differential rate expression, $\cfrac { dy }{ dt } =\cfrac { k\left[ { C }_{ 0 }-y \right]  }{ 1+by } $, where ${ C }_{ 0 }=$ initial concentration and $k$ and $b$ are constants. The half-life of reaction is

Options:
A. $$\left( 1+{ C }_{ 0 }b \right) \ln { 2 } -\cfrac { { C }_{ 0 }b }{ 2 } $$
B. \left( 1+{ C }_{ 0 }b \right) \ln { 2 } -\cfrac { 3{ C }_{ 0 }b }{ 4 }
C. $$\left( 1+{ C }_{ 0 }b \right) \ln { 2 } +\cfrac { { C }_{ 0 }b }{ 2 } \quad $$
D. \left( 1+{ C }_{ 0 }b \right) \ln { 2 } -\cfrac { 2{ C }_{ 0 }b }{ 5 }
E. \left( 1+{ C }_{ 0 }b \right) \ln { 2 } +\cfrac { 2{ C }_{ 0 }b }{ 3 }
F. \left( 1+{ C }_{ 0 }b \right) \ln { 2 } +\cfrac { 3{ C }_{ 0 }b }{ 4 }
G. $$\left( 1-{ C }_{ 0 }b \right) \ln { 2 } +\cfrac { { C }_{ 0 }b }{ 2 } $$
H. $$\left( 1-{ C }_{ 0 }b \right) \ln { 2 } -\cfrac { { C }_{ 0 }b }{ 2 } $$
I. \left( 1-{ C }_{ 0 }b \right) \ln { 2 } +\cfrac { { C }_{ 0 }b }{ 3 }
J. \left( 1+{ C }_{ 0 }b \right) \ln { 2 } -\cfrac { 3{ C }_{ 0 }b }{ 2 }
Answer: A
A solution of $H_2C_2O_4$ requires 200ml of NaOH for complete neutralization. The pH of the solution when 120ml of NaOH is added is: $($Given $: Ka_1 = 10^{-4}$ and $Ka_2 = 10^{-7}$ for $H_2C_2O_4) [\log 2=0.30]$

Options:
A. 5.8
B. 5.3
C. 6.4
D. 5.4
E. 5.9
F. 3.4
G. 5.7
H. 6.7
I. 4.6
J. 5.6
Answer: C
A 4 m long ladder weighing 25 kg rests with upper end against a smooth wall and lower end of rough ground. What should be the minimum coefficient of friction between the ground and the ladder for it to be inclined at $60$ with the horizontal without slipping? (Take g = 10 m ${s}^{-2}$)

Options:
A. $$0.49$$
B. 0.28
C. 0.24
D. 0.33
E. $$0.19$$
F. 0.38
G. $$0.39$$
H. 0.27
I. $$0.29$$
J. 0.31
Answer: I
Which is correct for any $H$ like species?

Options:
A. $$(E_{2} - E_{1}) = (E_{3} - E_{2}) < (E_{4} - E_{3})$$
B. (E_{2} - E_{1}) < (E_{3} - E_{2}) > (E_{4} - E_{3})
C. $$(E_{2} - E_{1}) < (E_{3} - E_{2}) < (E_{4} - E_{3})$$
D. $$(E_{2} - E_{1}) = (E_{3} - E_{2}) = (E_{4} - E_{3})$$
E. (E_{2} - E_{1}) > (E_{3} - E_{2}) = (E_{4} - E_{3})
F. (E_{2} - E_{1}) < (E_{3} - E_{2}) = (E_{4} - E_{3})
G. $$(E_{2} - E_{1}) = 1/4 (E_{3} - E_{2}) = 1/9 (E_{4} - E_{3})$$
H. $$(E_{2} - E_{1}) > (E_{3} - E_{2}) > (E_{4} - E_{3})$$
I. (E_{2} - E_{1}) > (E_{3} - E_{2}) < (E_{4} - E_{3})
Answer: C
The density of argon (face centered cubic cell) is 1.83 ${ g/cm }^{ 3 }$ at ${ 20 }^{ \circ  }C$. What is the length of an edge a unit  cell? (Atomic weight : Ar = 40)

Options:
A. 0.531 nm
B. 0.561 nm
C. 0.525 nm
D. 0.541 nm
E. 0.545 nm
F. 0.599 nm
G. 0.569nm
H. 0.551 nm
I. 0.555 nm
J. 0.557 nm
Answer: H
The latusrectum of a hyperbola $  \frac{x^{2}}{16}-\frac{y^{2}}{p}=1  $ is 4 $  \frac{1}{2} .  $ Its eccentricity $  e= $

Options:
A. 5/3
B. 4/5
C. 3/5
D. 3/4
E. 4/3
F. 5/4
Answer: B
Silver (atomic weight $=108$ g mol$^{-1}$) has a density of $10.5$ $\mathrm{g}\   \mathrm{c}\mathrm{m}^{-3}$. The number of silver atoms on a surface of area $10^{-12}\ \mathrm{m}^{2}$ can be expressed in scientific notation as $\mathrm{y}\times 10^{\mathrm{x}}$. The value of $x$ is :

Options:
A. 7
B. 8
C. 6
D. 10
E. 5
F. 9
Answer: A
The locus represented by equation |z i| + |z + i| $=$ 1 on Argand plane

Options:
A. ellipse
B. hyperbola
C. parabola
D. no locus
E. straight line
F. circle
Answer: A
$A$ and $B$ are two separate reservoir of water. Capacity of reservoir $A$ is double the capacity of reservoir $B$. Both the reservoirs are filled completely with water, their inlets are closed and then the water is released simultaneously from both the reservoirs. The rate of flow of water out of each reservoir at any instant of time is proportional to the quantity of water in the reservoir at that time. One hour after the water is released, the quantity of water in reservoir $A$ is $1.5$ times the quantity of water in reservoir $B$.Let $V_A$ and $V_B$ represents volume of the reservoirs $A$ and $B$ any time $t$, then:On the basis of above information, answer the following questions:If $\displaystyle\frac{V_A}{V_B}\,=\, f(t)$ where $t$ is time. then $f(t)$ is:

Options:
A. Increasing
B. Non-monotonic
C. Decreasing
D. Data insufficient
E. Constant
Answer: A
The number of tangents to the cure $x^{3/2}+y^{3/2}=2a^{3/2}, a> 0$, which are equally inclined to the axes, is

Options:
A. 6
B. 1
C. 2
D. 4
E. 0
F. 3
G. 5
Answer: B
A cylindrical object with a height of $H = 0.4 \, \text{m}$ starts at a uniform initial temperature. The curved surface around it is fully insulated, while the top and bottom surfaces are exposed to airflow. The heat transfer coefficient between the airflow and the end surfaces is $50 \, \text{W} / (\text{m}^2 \cdot \text{K})$. The thermal conductivity of the cylinder is $\lambda = 20 \, \text{W} / (\text{m} \cdot \text{K})$, and the thermal diffusivity is $\alpha = 5.6 \times 10^{-6} \, \text{m}^2 / \text{s}$. Determine the time required for the excess temperature at the center of the cylinder to decrease to half of its initial value.

Options:
A. $$
6. 3 5 h
$$
B. $$
5. 6 8 h
$$
C. $$
3. 9 4 h
$$
D. $$
2. 7 7 h
$$
E. $$
2. 5 0 h
$$
F. $$
4. 5 8 h
$$
G. $$
3. 3 7 h
$$
H. $$
1. 9 0 h
$$
I. $$
5. 1 5 h
$$
J. $$
4. 1 2 h
$$
Answer: G
What are the requirements for a property name when using MIIN (property name) in a SELECT statement?

Options:
A. The value must be a floating point
B. The value requires Boolean data type
C. The value must be numeric
D. The value must be a character type
E. The value must include special symbols
F. The property is restricted to integers
G. The value must be a binary type
H. The value must include alphanumeric characters
I. The value must be numeric or character
J. Data types are not restricted
Answer: I
Which of the following SQL data types is best used to store the "student number" attribute?

Options:
A. real
B. boolean
C. blob
D. timestamp
E. text
F. int
G. date
H. varchar(n)
I. numeric
J. char(n)
Answer: J
What is the value of the non-dimensional parameter (Q) for a circular orbit?

Options:
A. 8
B. 0
C. 4
D. 5
E. 3
F. 9
G. 7
H. 2
I. 1
J. 6
Answer: I
Use Caesar's Cipher to decipher the following HQFUBSWHG WHAW: ___.

Options:
A. SCRAMBLED WORD
B. HIDDEN MESSAGE
C. ABANDONED LOCK
D. ABANDONED TEXT
E. SECURED CODE
F. ENCRYPTED TEXT
G. DECRYPTED LOCK
H. CODED OBJECT
I. ENCRYPTED LOCK
J. MASKED SCRIPT
Answer: F
______ is an example of asymmetric ciphers.

Options:
A. Compression algorithms
B. HTTP protocol standards
C. Block cipher
D. AES encryption
E. Key distribution network
F. Advanced cryptology
G. RSA encryption
H. Quantum entanglement
I. Elliptic curve methods
J. Vigenère encryption
Answer: G
The default key size of the RC2 Feistel cipher is ( )

Options:
A. 64 terabytes
B. 64 gigabytes
C. 64 bytes
D. 64 megabytes
E. 64 kilobytes
F. 64 kilobits
G. 64GB
H. 64KB
I. 64 megabits
J. 64 bits
Answer: C
EIGamal encryption system is ______.

Options:
A. block cipher method
B. symmetric key cryptography system
C. digital signature verification tool
D. asymmetric key encryption algorithm
E. Rivest-Shamir-Adleman scheme
F. symmetric key encryption algorithm
G. private key management system
H. symmetric block encryption algorithm
I. public key distribution method
J. not an encryption algorithm
Answer: D
Ministry of Education, Government of Delhi will be rendered according to Classified Catalogue Code (CCC) as ().

Options:
A. CODE, CLASSIFIEDCatalogue(Ministry -)
B. DELHI, CODE(Education of -)
C. CLASSIFIED, DELHI(Code - Ministry)
D. CODE, EDUCATION(CCC - Delhi)
E. EDUCATION, CODE(Classified - of)
F. DELHI, EDUCATION(Ministry of -)
G. MINISTRY, EDUCATION(Delhi Code -)
H. DELHI, OF(Ministry - Education)
I. MINISTRY, CCC(Delhi of -)
J. EDUCATION, DELHI(Ministry - of)
Answer: F
Which of the following skills is essential for a sports medicine professional to effectively collaborate with athletes and their families?

Options:
A. Advanced medical knowledge
B. Technical expertise
C. Listening Skills
D. Coaching abilities
E. Physical strength
F. Problem-solving techniques
G. Communication strategies
H. Counseling skills
I. Analytical reasoning
J. Negotiation skills
Answer: C
Which of these is a universal signature identified by Dutton?

Options:
A. Genre
B. Vibe
C. Role
D. Image
E. Pattern
F. Purpose
G. Expression
H. Style
I. Technique
J. Theme
Answer: H
The following are essential amino acids: ().

Options:
A. Glycine, cysteine, proline, serine
B. Glycine, arginine, asparagine, lysine
C. Threonine, phenylalanine, tryptophan, valine
D. Alanine, threonine, glycine, valine
E. Proline, serine, tyrosine, histidine
F. Isoleucine, leucine, methionine, glutamic acid
G. Arginine, cysteine, glutamine, proline
H. Alanine, arginine, methionine, glycine
I. Methionine, alanine, arginine, lysine
J. Aspartic acid, glutamine, asparagine, histidine
Answer: C
Leo Tolstoy says that art is().

Options:
A. legacy
B. destruction
C. revelation
D. distraction
E. deception
F. revolution
G. persuasion
H. expression
I. salvation
J. enlightenment
Answer: H
Consider $1 \mathrm{mol}$ of air (with oxygen accounting for $\frac{1}{5}$ and nitrogen accounting for $\frac{4}{5}$) at a temperature of 27°C and a pressure of 1 atm. Now, if the oxygen and nitrogen are separated, with the temperature and pressure remaining unchanged, what is the minimum work required for the separation?

Options:
A. $$
- R T \operatorname{l n} 5+{\frac{8} {5}} \operatorname{l n} 2
$$
B. $$
- R T \operatorname{l n} 7+{\frac{8} {5}} \operatorname{l n} 1
$$
C. $$
- R T \operatorname{l n} 4+{\frac{9} {5}} \operatorname{l n} 2
$$
D. $$
- R T \operatorname{l n} 3+{\frac{7} {5}} \operatorname{l n} 4
$$
E. $$
- R T \operatorname{l n} 5+{\frac{7} {5}} \operatorname{l n} 3
$$
F. $$
- R T \operatorname{l n} 2+{\frac{8} {5}} \operatorname{l n} 4
$$
G. $$
- R T \operatorname{l n} 6+{\frac{7} {5}} \operatorname{l n} 2
$$
H. $$
- R T \operatorname{l n} 3+{\frac{8} {5}} \operatorname{l n} 2
$$
I. $$
- R T \operatorname{l n} 5+{\frac{6} {5}} \operatorname{l n} 3
$$
J. $$
- R T \operatorname{l n} 5+{\frac{9} {5}} \operatorname{l n} 3
$$
Answer: A
Assuming the degree of polymerization for polyethylene is 3000 and the bond angle is 109.5°, what is the ratio of the length of the fully extended chain $L_{\mathrm{max}}$ to the root mean square end-to-end distance of the freely rotating chain?

Options:
A. $33$
B. $300$
C. $480$
D. $45$
E. $55$
F. $12$
G. $150$
H. $260$
I. $90$
J. $72$
Answer: D
A phenotypically normal couple has a son who is both albino and colorblind. Predict the probability of them having another abnormal offspring.

Options:
A. 1/4
B. 7/16
C. 3/4
D. 15/16
E. 3/8
F. 5/8
G. 3/16
H. 1/16
I. 5/16
J. 1/2
Answer: B
The mass of a certain planet is about 9 times that of Earth, with a radius half that of Earth. If an object is projected horizontally from a height of $h$ on Earth, with a range of 60 meters, what would be the range if the same object is projected horizontally from the same height with the same initial velocity on this planet?

Options:
A. 50m
B. 25m
C. 40m
D. 5m
E. 30m
F. 10m
G. 55m
H. 15m
I. 120m
J. 20m
Answer: F
A rectangular room with rigid walls, measuring $3.12 \ \mathrm{m} \times 4.69 \ \mathrm{m} \times 6.24 \ \mathrm{m}$, seek to find its lowest three natural frequencies.

Options:
A. 25.3 Hz,34.7 Hz,44.1 Hz
B. 30.2 Hz,40.0 Hz,49.0 Hz
C. 28.3 Hz,37.5 Hz,46.3 Hz
D. 27.1 Hz,36.0 Hz,45.7 Hz
E. 28.9 Hz,38.2 Hz,47.3 Hz
F. 26.9 Hz,35.8 Hz,46.8 Hz
G. 29.7 Hz,39.1 Hz,48.5 Hz
H. 27.6 Hz,36.8 Hz,46.0 Hz
I. 29.5 Hz,38.7 Hz,47.9 Hz
J. 26.5 Hz,35.4 Hz,45.2 Hz
Answer: H
The $\mathrm{p} K_{a}^{\prime}$ values for aquatic mammals $HHbO_{2}$ and $HHb$ are 6.62 and 8.18, respectively. Calculate the number of moles of $\mathrm{H}^{+}$ that hemoglobin binds when releasing one mole of oxygen at $\mathrm{pH} 7.4$?

Options:
A. $$
0. 9 5 2 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
B. $$
0. 5 9 8 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
C. $$
0. 6 2 3 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
D. $$
0. 8 1 5 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
E. $$
0. 4 1 6 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
F. $$
0. 7 1 6 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
G. $$
1. 3 4 9 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
H. $$
1. 0 2 4 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
I. $$
0. 9 1 1 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
J. $$
0. 5 8 7 \mathrm{H}^{+} / \mathrm{O}_{\mathrm{2}}
$$
Answer: F
The temperature at a certain high altitude location is $-10^{\circ} \ \mathrm{C}$, and the partial pressure of oxygen is $5.3 \times 10^{3} \ \mathrm{Pa}$. Try to determine the altitude of this location (Hint: First find the partial pressure of oxygen under standard conditions).

Options:
A. $$
\approx3 4 5 0 \ \mathrm{m}
$$
B. $$
\approx7 9 0 0 \ \mathrm{m}
$$
C. $$
\approx1 0 1 0 \ \mathrm{m}
$$
D. $$
\approx9 6 4 0 \ \mathrm{m}
$$
E. $$
\approx5 8 0 0 \ \mathrm{m}
$$
F. $$
\approx7 3 0 0 \ \mathrm{m}
$$
G. $$
\approx1 5 7 0 \ \mathrm{m}
$$
H. $$
\approx1 2 3 0 \ \mathrm{m}
$$
I. $$
\approx8 4 0 0 \ \mathrm{m}
$$
J. $$
\approx6 8 0 0 \ \mathrm{m}
$$
Answer: D
When using the $\mathrm{W L F}$ equation to calculate the degree of polymerization, its applicable range is ().

Options:
A. Around $T_{f}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+125 \mathrm{^\circ C}$
B. Below $T_{f}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+50 \mathrm{^\circ C}$
C. Below $T_{f}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+200 \mathrm{^\circ C}$
D. Below $T_{m}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+100 \mathrm{^\circ C}$
E. Below $T_{f}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+100 \mathrm{^\circ C}$
F. Above $T_{\mathrm{g}}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+75 \mathrm{^\circ C}$
G. Below $T_{m}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+150 \mathrm{^\circ C}$
H. Below $T_{f}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+25 \mathrm{^\circ C}$
I. Above $T_{m}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+50 \mathrm{^\circ C}$
J. Above $T_{f}$ and $T_{\mathrm{g}} \sim T_{\mathrm{g}}+100 \mathrm{^\circ C}$
Answer: E
At 25°C, two electrodes with the same area are placed in an electrolyte for electrolysis. When the external current is zero, the cell voltage is 0.832 $\mathbf{V}$; when the external current density is 1 A/cm$^{2}$, the cell voltage is 1.765 $\mathbf{V}$. It is known that the exchange current density of the cathode reaction is $1 \times 10^{-9} \mathrm{A/cm}^{2}$, the number of electrons participating in both the anode and cathode reactions is 2, the transfer coefficient $\vec{\alpha}=1.0$, and the ohmic voltage drop of the solution is 0.4 $\mathbf{V}$. What is the exchange current density of the anode reaction at $25^{\circ} \mathrm{C}$?

Options:
A. $$
= 6 1. 2 9 A / c m^{2}
$$
B. $$
= 1 9. 4 7 A / c m^{2}
$$
C. $$
= 3 4. 1 5 A / c m^{2}
$$
D. $$
= 8 8. 0 1 A / c m^{2}
$$
E. $$
= 2 0. 5 9 A / c m^{2}
$$
F. $$
= 4 2. 3 6 A / c m^{2}
$$
G. $$
= 9 5. 7 4 A / c m^{2}
$$
H. $$
= 1 2. 8 3 A / c m^{2}
$$
I. $$
= 7 3. 6 2 A / c m^{2}
$$
J. $$
= 5 7. 5 8 A / c m^{2}
$$
Answer: H
What is the profession of Greek musician Zina Kis?

Options:
A. Actor and Biologist
B. Playwright and Astronomer
C. Singer and Geographer
D. Novelist and Linguist
E. Architect and Mathematician
F. Sculptor and Engineer
G. Dancer and Statistician
H. Poet and Philosopher
I. Composer and Economist
J. Painter and Historian
Answer: E
Suppose that $L_ {p}$ expressed in $m^{3} N^{-1} s^{-1}$or m $s^ {-1} Pa^{-1}$. The search conversion factor is expressed as ____ in ml $min^{-l} cm^{-2} torr^{-l}$.

Options:
A. $$9. 8 7 \times1 0^{5} L_{p} $$
B. $$7. 9 8 \times1 0^{5} L_{p} $$
C. $$5. 6 7 \times1 0^{5} L_{p} $$
D. $$9. 9 9 \times1 0^{5} L_{p} $$
E. $$8. 7 9 \times1 0^{5} L_{p} $$
F. $$3. 4 5 \times1 0^{5} L_{p} $$
G. $$7. 8 9 \times1 0^{5} L_{p} $$
H. $$6. 7 8 \times1 0^{5} L_{p} $$
I. $$1. 2 3 \times1 0^{5} L_{p} $$
J. $$2. 3 4 \times1 0^{5} L_{p} $$
Answer: G
The number-average molecular weight of a random poly (isobutylene-isoprene) copolymer in which the fraction of isobutylene repeat units is 0.25; assume that this concentration corresponds to a degree of polymerization of 1500 is().

Options:
A. $$
1 0 3, 3 0 0 \mathrm{~ g / m o l ~}
$$
B. $$
1 1 2, 8 8 0 \mathrm{~ g / m o l ~}
$$
C. $$
9 7, 7 0 0 \mathrm{~ g / m o l ~}
$$
D. $$
9 8, 5 0 0 \mathrm{~ g / m o l ~}
$$
E. $$
9 5, 4 5 0 \mathrm{~ g / m o l ~}
$$
F. $$
9 3, 9 0 0 \mathrm{~ g / m o l ~}
$$
G. $$
1 0 5, 0 0 0 \mathrm{~ g / m o l ~}
$$
H. $$
1 0 0, 7 0 0 \mathrm{~ g / m o l ~}
$$
I. $$
9 0, 1 0 0 \mathrm{~ g / m o l ~}
$$
J. $$
8 5, 6 5 0 \mathrm{~ g / m o l ~}
$$
Answer: C
Using the bisection method, what is the smallest positive root of the equation $f(x) = x^{3} - 2x - 5 = 0$? Accurate to $10^{-3}$.

Options:
A. $$
x^{*}=2. 0 9 5
$$
B. $$
x^{*}=2. 0 8 5
$$
C. $$
x^{*}=1. 9 9 5
$$
D. $$
x^{*}=2. 1 5 5
$$
E. $$
x^{*}=2. 2 0 5
$$
F. $$
x^{*}=1. 9 8 5
$$
G. $$
x^{*}=2. 0 6 5
$$
H. $$
x^{*}=1. 9 7 0
$$
I. $$
x^{*}=2. 0 7 5
$$
J. $$
x^{*}=2. 1 0 5
$$
Answer: A
The principle that our country adheres to in the socialist transformation of individual agriculture is ().

Options:
A. Development and consolidation
B. Mobilization and encouragement
C. Traditional and static
D. Isolation and independence
E. Experimental and untested
F. Voluntary and mutually beneficial
G. Compulsory and enforced
H. Demonstration and promotion
I. Centralized and regulated
J. Profit-driven and competitive
Answer: F
The moral responsibility of administrators in the pre-moral stage depends on ().

Options:
A. External coercive force
B. Intrinsic Control
C. External Control
D. Legal Standards
E. Social Norms
F. Peer Influence
G. Personal Ambition
H. Internal Compulsion
I. Cultural Expectations
J. Ethical Training
Answer: A
In China, the government's activities primarily target is ( ).

Options:
A. transportation field
B. communication field
C. private goods field
D. market field
E. technological field
F. agricultural field
G. industrial field
H. educational field
I. all fields
J. public services field
Answer: J
At present, the main implementing institutions of secondary education in the UK are county secondary schools, direct funding public schools, and ().

Options:
A. city technical college
B. village development academies
C. district science academies
D. provincial learning facilities
E. town experimental stations
F. municipal vocational institutes
G. urban arts and technology schools
H. metropolitan research
I. suburban educational complexes
J. regional liberal arts centers
Answer: A
What is the main enrollment system of higher education in Southeast Asian countries and regions?

Options:
A. Centralized application process
B. Separate examination system
C. Recommended admission system
D. Regional assessment framework
E. High school certificate system
F. Competitive scholarship program
G. Unified examination system
H. National standardized testing system
I. Alternative admission pathway
J. Direct institutional admission policy
Answer: G
In the history of science, who first proposed the concept of "experimental science"?

Options:
A. Roger Bacon
B. Thomas Aquinas
C. Nicolaus Copernicus
D. Isaac Newton
E. Francis Bacon
F. René Descartes
G. Galileo Galilei
H. Leonardo di ser Pieroda Vinci
I. Albertus Magnus
J. Johannes Kepler
Answer: A
Gauss said, "There is a theorem that I sought to prove for many years without success. Finally, two days ago, I succeeded... like a bolt of lightning, the mystery was instantly solved. I can't even explain what connection linked my previous knowledge to the thing that led to my success." The phenomenon Gauss described primarily reflects ___.

Options:
A. Concentration of Attention
B. The Jumpiness of Logic
C. The Flow of Creativity
D. The Clarity of Insight
E. Peculiarity of Fantasy
F. The Complexity of Understanding
G. The Power of Intuition
H. The Suddenness of Achievements
I. The Persistence of Curiosity
J. The Serendipity of Discovery
Answer: H
Who is the most quintessentially Jewish writer, consistently writing in Yiddish, with works deeply imbued with Jewish cultural essence, whose famous work is "The Magician of Lublin," and who was awarded the Nobel Prize in Literature in 1978?

Options:
A. Moishe Nadir
B. Bialik
C. Isaac Bashevis
D. Yitzhak Shner
E. Avraham Kahan
F. Blume Lempel
G. Chaim Potok
H. Sholem Aleichem
I. David Bergelson
J. Singer
Answer: J
Who came up with a unique style of calligraphy called Lacquer Script?

Options:
A. Jin Nong
B. Zheng Banqiao
C. Zhao Zhiqian
D. Yan Zhenqing
E. Zhao Mengfu
F. Wang Xizhi
G. Ouyang Xun
H. Liu Yong
I. Cai Xiang
J. Liu Gongquan
Answer: A
A light elastic rope ( the weight is ignored) is fixed at the upper end and an object with a mass of 3 grams is suspended at the lower end. It is also known that the rope stretches $\frac{1} {2 4}$cm when subjected to an external force of 1 gram weight. If the object is lowered when the rope is straightened but not extended, where does the object begin to rise again?

Options:
A. $$s=\frac{1} {5}$$
B. $$s=\frac{3} {8}$$
C. $$s=\frac{2} {5}$$
D. $$s=\frac{5} {6}$$
E. $$s=\frac{5} {9}$$
F. $$s=\frac{3} {4}$$
G. $$s=\frac{1} {4}$$
H. $$s=\frac{5} {7}$$
I. $$s=\frac{1} {9}$$
J. $$s=\frac{1} {3}$$
Answer: G
Compared to forest ecosystems, agro-ecosystems have a relatively high ratio of ____ indicators to total productivity.

Options:
A. Forest Community Productivity
B. Secondary Productivity
C. Primary Productivity
D. Community Secondary Productivity
E. Ecosystem Net Primary Productivity
F. Community Net Primary Productivity
G. Agricultural Net Primary Productivity
H. Secondary Net Primary Productivity
I. Primary Net Productivity
J. Primary Ecosystem Productivity
Answer: F
At $4 5 \, \mathrm{N}$, the shortest distance between two contour lines of 3000gpm and 2960gpm on the 700hpa isobar is 190km, what is the magnitude of the geostrophic wind?

Options:
A. -22.57m/s
B. -17.30m/s
C. -24.36m/s
D. -16.50m/s
E. -19.83m/s
F. -25.08m/s
G. -23.69m/s
H. -18.25m/s
I. -21.10m/s
J. -20.42m/s
Answer: J
There are two machines producing sound pressure levels of 85dB and 67dB, if the two machines are working at the same time, what is the sound pressure level?

Options:
A. 92dB
B. 78dB
C. 88dB
D. 82dB
E. 70dB
F. 90dB
G. 75dB
H. 152dB
I. 85dB
J. 95dB
Answer: I
What is a geochemical system?

Options:
A. Within the geochemical framework, the subject of interest is typically perceived as a cycle.
B. From the geochemical viewpoint, the subject matter is often handled as a mechanism.
C. From the geochemical stance, the subject of examination is generally seen as a system.
D. Within the geochemical spectrum, the subject of research is occasionally seen as a process.
E. From the geochemical perspective, the subject of study is usually treated as a system.
F. From the geothermal perspective, the subject of study is usually treated as a system.
G. Within the geochemical domain, the subject of scrutiny is regularly regarded as a system.
H. From the geochemical standpoint, the point of inquiry is frequently viewed as a structure.
I. Inside the geochemical perspective, the subject of method is usually treated as a system.
J. Within the geochemical scope, the subject of analysis is sometimes treated as a system.
Answer: E
What are the other parts of the compound stomach besides the true stomach?

Options:
A. Inflammation of the cecum
B. Obstruction of the duodenum
C. Stimulation of the colon
D. Constriction of the antrum
E. Contraction of the ileum
F. Expansion of the rumen
G. Swelling of the jejunum
H. Irritation of the rectum
I. Dilation of the pylorus
J. Deformation of the esophagus
Answer: J
The vacuum pressure at a certain point is 65000 Pa, and the local atmospheric pressure is 0.1 MPa. What is the absolute pressure at that point?

Options:
A. 125000Pa
B. 50000Pa
C. 65000Pa
D. 55000Pa
E. 105000Pa
F. 75000Pa
G. 165000Pa
H. 35000Pa
I. 85000Pa
J. 95000Pa
Answer: H
For a grating with $50$ lines per millimeter, if the angular separation between the first-order spectrum and the zero-order spectrum for red light $(λ=700nm)$ needs to be $5°$, at what angle should the red light be incident on the grating?

Options:
A. $67.29°$
B. $63.75°$
C. $65.30°$
D. $78.32°$
E. $72.14°$
F. $66.42°$
G. $64.58°$
H. $58.89°$
I. $69.51°$
J. $70.05°$
Answer: F
Given a glass sphere with a refractive index of 1.5 and a radius of 4 cm, and an object located 6 cm from the surface of the sphere, how can one determine: The distance between the image formed and the center of the sphere?

Options:
A. 12 cm
B. 18 cm
C. 11 cm
D. 15 cm
E. 20 cm
F. 8 cm
G. 16 cm
H. 10 cm
I. 14 cm
J. 13 cm
Answer: D
The Harmonious Garden in China's Summer Palace is modeled after which of the following garden buildings?

Options:
A. Lion Grove Garden
B. Yuyuan Garden
C. Lingering Garden
D. Ruan Garden
E. Lotus Blossom Garden
F. Humble Administrator's Garden
G. Jichang Garden
H. Golden Hill Garden
I. Slender West Lake
J. Master of Nets Garden
Answer: G
What are the major sources of measurement error?

Options:
A. Data handling procedures, software platforms, calibration settings
B. Experimental design, research personnel, data interpretation
C. Calibration tools, analytic methods, statistical models
D. Survey methods, participant factors, environmental variables
E. Calibration devices, measurement settings, hardware components
F. Sampling techniques, observer bias, analytical tools
G. Observation instruments, observers, external conditions
H. Testing conditions, experiment setups, procedural guidelines
I. Research methodologies, user errors, experimental protocols
J. Data collection techniques, observation biases, internal conditions
Answer: G
Reactive dyes can be categorized into various types according to the active groups: homotriazine reactive group, pyrimidine reactive group, vinyl sulfone reactive group, () reactive group, and composite reactive group.

Options:
A. trinitrophenyl
B. carboxymethyl
C. aminoethyl
D. phosphonate
E. methyl methacrylate
F. ethylene glycol
G. hexamethylene diisocyanate
H. nitrobenzyl
I. methoxypropyl
J. hydroxylamine
Answer: D
What is the reason why the pom-pom nodules of animals are removed and cannot stand, but the feeding action is normal?

Options:
A. Spinal injury
B. Ear infection
C. Muscle fatigue
D. Viral infection
E. Joint inflammation
F. Genetic mutation
G. Nutritional deficiency
H. Neurological disorder
I. Balance dysfunction
J. Vision impairment
Answer: I
The concentration of CO2 in the blood mainly depends on ( ).

Options:
A. Capillary permeability
B. CO2 partial pressure
C. Blood temperature
D. Plasma bicarbonate concentration
E. Blood pH
F. Blood nitrogen content
G. Red blood cell count
H. Blood O2 content
I. Hemoglobin levels in blood
J. CO2 solubility
Answer: B
Clinically, adults' body types are categorized into three types: the ______ type, the ______ type, and the ________ type.

Options:
A. slight, tough, customary
B. skinny, stout, normal
C. ectomorphic, mesomorphic, endomorphic
D. lean, muscular, balanced
E. thin, broad, average
F. fragile, robust, standard
G. asthenic, hypersthenic, normosthenic
H. slim, heavy, regular
I. petite, brawny, typical
J. fragile, hefty, moderate
Answer: G
The proportion of airway resistance with diameter less than 2mm in total resistance ().

Options:
A. 50%
B. 10%
C. 45%
D. 40%
E. 20%
F. 55%
G. 30%
H. 35%
I. 25%
J. 15%
Answer: B
The number of sieve holes, or mesh size, in industrial sieves refers to ( ).

Options:
A. The number of sieve holes per centimeter
B. The number of sieve holes per square centimeter
C. The thickness of the sieve material
D. The number of sieve holes per square meter
E. The number of sieve holes per inch
F. The total area of the sieve holes
G. The diameter of each sieve hole
H. The size of the largest sieve hole
I. The number of sieve holes per square inch
J. The number of sieve holes per cubic meter
Answer: E
Among the basic qualities of grassroots cadres, the core one is ().

Options:
A. Moral quality
B. Scientific knowledge
C. Social media influence
D. Athletic ability
E. Military and professional quality
F. Political quality
G. Artistic sensitivity
H. Administrative efficacy
I. Financial expertise
J. Cultural quality
Answer: F
The establishment of the General Practice Branch of the Chinese Medical Association marks the birth of the discipline of general practice medicine in our country. What is the date of this occurrence?

Options:
A. 1993.11
B. 1999.12
C. 1995.6
D. 1991.7
E. 1990.3
F. 1992.10
G. 1996.6
H. 1997.1
I. 1994.8
J. 1992.9
Answer: A
What does the current discussed shift in medical models refer to?

Options:
A. Transition from the Public Health Model to the Personalized Medicine Model
B. Shifting from Disease-Centered Care to Whole-Person Care Model
C. Shifting from Public Health Systems to Personal Medical Model
D. Shifting from the Biomedical Model to the Social Medicine Model
E. Shifting from the Psychosocial Model to the Biomedical Medical Model
F. Shifting from the Biomedical Model to the Biopsychosocial Medical Model
G. From the biomedical model to the biopsychosocial medical model.
H. From the mechanistic medical model to the natural philosophy medical model
I. From the Biopsychosocial Model to the Biomedical Healthcare Model
J. Transition from a Spiritualistic Medical Model to a Biomedical Model
Answer: F
What is the classification management system for civil servants based on factors such as job nature, difficulty level, responsibility size, and required qualifications?

Options:
A. Work status evaluation
B. Role-based classification
C. Professional level grading
D. Position-based ranking
E. Job classification
F. Employment type categorization
G. Performance skill assessment
H. Official rank classification
I. Functional area differentiation
J. Grade classification
Answer: E
Which three fluorophores are excited by the three shots side by side in a Braun tube?

Options:
A. Green, Red, Blue
B. Yellow, Purple, Orange
C. Red, Yellow, Cyan
D. Blue, Violet, Indigo
E. Red, Blue, Green
F. Blue, Green, Red
G. Orange, Pink, Brown
H. Cyan, Magenta, Yellow
I. Green, Black, White
J. Red, Green, Blue
Answer: J
How did Mr. Liu Jiahe meet Mr. Chen Yuan during his work at Beijing Normal University?

Options:
A. Cultural festival coordination
B. Academic Research
C. Organized social events
D. Daily life chores
E. Sporting event meetings
F. Local community projects
G. Volunteer service programs
H. Teaching activities
I. Campus technology workshops
J. Administrative affairs
Answer: B
Which of the following options is more in line with the attribution explanation proposed by the theory of self-control?

Options:
A. A top scientist is involved in a "data fabrication"
B. A famous director is implicated in a "casting fraud"
C. A famous singer is caught in the "drug door"
D. A distinguished chef is accused of "recipe theft"
E. A celebrated artist is linked to a "tax evasion"
F. A well-known actor is seen in a "scandalous affair"
G. A prominent journalist is caught in a "fake news"
H. A renowned author is involved in a "plagiarism case"
I. A popular athlete is found in a "doping scandal"
J. A leading politician is caught in a "bribery scheme"
Answer: C
What year was the first academic journal in the world to introduce Gram and Knight, "Journal of Computational Physics", published?

Options:
A. 1970
B. 1969
C. 1963
D. 1962
E. 1966
F. 1971
G. 1968
H. 1965
I. 1964
J. 1967
Answer: E
The __________ refers to the time when reproductive capabilities stop due to aging, illness, and other factors.

Options:
A. reproductive function cessation period
B. reproductive function enduring stage
C. reproductive capacity ending moment
D. reproductive phase cessation zone
E. reproductive ability continuation phase
F. reproductive process breakdown interval
G. reproductive health stopping time
H. reproductive system failure era
I. reproductive activity pausing duration
J. reproductive cycle halting sequence
Answer: A
In running, the prime mover muscle that fully straightens the back pedal leg does its centripetal work in ____.

Options:
A. magnorepulsion
B. photodetection
C. semiconduction
D. telefixation
E. thermoregulation
F. hyperextension
G. electromotion
H. biotransport
I. radiolocation
J. microcalculation
Answer: D
Salt marshes are affected by extreme fluctuations in salinity, temperature, and ______.

Options:
A. marine ecosystems
B. atmospheric pressure
C. land pollution
D. aquatic wildlife
E. tidal conditions
F. freshwater sources
G. ocean currents
H. human activities
I. coastal erosion
J. seasonal variations
Answer: E