datavorous/entrance-exam-dataset huggingface dataset:
The pair of structure given below

represents

Options:
A conformational enantiomers
B conformational diastereomers
C structural isomers
D none of the above

The correct answer is:
conformational diastereomers

Solution:
Conformers I and II are not mirror image of each. Hence, these stereoisomers (because conformational isomers differ from each only in the orientation of atoms in space), are called diastereomers.

Topic: Chemistry, General Organic Chemistry, NEET
The pair of the compounds in which both the metals are in the highest possible oxidation state are

Options:
A [Fe(CN)]3-,[Co(CN)6]3-
B [Co(CN)6]3-,MnO2
C TiO3,MnO2
D CrO2Cl2,MnO4-

The correct answer is:
CrO2Cl2,MnO4-

Solution:
The maximum oxidation state of Cr is +6 in CrO2Cl2 and that of Mn is +7 in MnO4- .

Topic: Chemistry, d and f Block Elements, NEET
The pair that requires calcination is

Options:
A ZnCO3 and CaO
B Fe2O3 and CaCO3.MgCO3
C ZnO and Fe2O3.xH2O
D All of these

The correct answer is:
All of these

Solution:
Calcination is required for carbonate and hydrated oxide ores. So, here calcination is possible in all these.

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
The pancreatic juice contains enzymes

Options:
A trypsinogen, chymotrypsinogen, procarboxypeptidases, amylases, lipases and nucleases.
B trypsinogen, chymotrypsinogen, procarboxypeptidases, aminopeptidases, amylases, lipases and nucleases.
C trypsinogen, chymotrypsinogen, procarboxypeptidases, aminopeptidases, amylases, lipases and nucleases, nucleotidases, nucleosidases.
D trypsinogen, chymotrypsinogen, procarboxypeptidases, amylases, lipases, pepsinogen and nucleases.

The correct answer is:
trypsinogen, chymotrypsinogen, procarboxypeptidases, amylases, lipases and nucleases.

Solution:
Pancreatic juice and bile open through a hepatopancreatic duct into the duodenum where intestinal juice also mixes with it. Duodenum is the site where maximum digestion takes place. First the pancreatic juice acts on the macromolecules and then intestinal juice acts on them to finally convert into micromolecules that can be readily absorbed. These are done with the help of various enzymes present in the juices. Pancreatic juice contains enzymes in an inactive form that become activated by enterokinase (an enzyme of the small intestine). The inactive enzymes are trypsinogen, chymotrypsinogen, procarboxypeptidases, amylases, lipases, and nucleases. Enterokinase first activates trypsinogen to form trypsin and then this enzyme activates the other pancreatic enzymes. Trypsin, chymotrypsin, and carboxypeptidases act on proteins. Amylases act on starch. Lipases act on fats. Nucleases act on nucleic acids. Lipases are present in gastric juice, pancreatic juice and succus entericus too.

Topic: Biology, Digestion and Absorption, NEET
The parallel plate capacitor has potential difference of 100 V and separation between the plate is 1 mm . An electron is projected along x axis in between the plates. If the electron comes out of the plates along the x axis undeviated then the magnitude and direction of magnetic field that must be applied between the plates : (particle is projected with a velocity of 105m/s along x axis)

Options:
A B=1k^ Tesla
B B=1j^ Tesla
C B=1–j^ Tesla
D B=10 –j^ Tesla

The correct answer is:
B=1j^ Tesla

Solution:
Felectric=Fmag
eE=eVÃB
B=E/V=P.Ddis tance Ã speed=100V1Ã10â3Ã105m/s
=1T
Electric force is along +k^ direction then
magnetic force must be in âk^ direction.
There fore B must be in +j^ direction.

Topic: Physics, Magnetic Effects of Current, NEET
The paramagnetic species is-

Options:
A SiO2
B TiO2
C BaO2
D KO2

The correct answer is:
KO2

Solution:
The species containing unpaired electron will show paramagnetic nature. Among the given options, all the metal ions have only paired electrons, so whether the compound is magnetic or not depends on the anion in each case. In case of silicon dioxide and titanium oxide, O2- is present which doesn't have unpaired electrons. In case of Barium peroxide, the peroxide ion (O22-) also has only paired electrons and hence the compound is diamagnetic.
In case of potassium superoxide, O2- ion has unpaired electron and this will give the compound paramagnetic nature.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
The parasympathetic nervous system increases the activity of

Options:
A Gut, iris and urinary bladder
B Heart, adrenal and sweat gland
C Heart, pancreas and lachrymal gland
D Lachrymal gland and sweat gland

The correct answer is:
Gut, iris and urinary bladder

Solution:
Parasympathetic nervous system stimulates the peristaltic movement of digestive tract, contracts the wall of urinary bladder and reduces the diameter of the pupil by contracting the iris.

Topic: Biology, Neural Control and Coordination, NEET
The parents do not suffer from a disease but this disease is seen in some of their children. This disease must be caused due to

Options:
A autosomal dominant gene
B autosomal recessive gene
C mitochondrial recessive gene
D mitochondrial dominant gene

The correct answer is:
autosomal recessive gene

Solution:
In autosomal recessive disorder, if the parents are heterozygous (Aa), they will not suffer from the disease. However, they will produce offsprings of the genotype AA, Aa and aa. The children with genotype aa will suffer from the disease.

Topic: Biology, Principles of Inheritance and Variation, NEET
The part marked as ' $x$ ' in the given figure is

Options:
A Endosperm
B Thalamus
C Endocarp
D Mesocarp

The correct answer is:
Thalamus

Solution:
The given figure is of the false fruit, strawberry and ' $x$ ' represents the thalamus.

Topic: Biology, Morphology of Flowering Plants, NEET, NEET 2024 (Re-NEET)
The part of a gene which codes for an enzyme is called

Options:
A cistron.
B codon.
C exon.
D intron.

The correct answer is:
cistron.

Solution:
Gene is a segment of DNA that is responsible for synthesis of a particular type of protein. Gene that codes for a particular protein or enzyme is also called as cistron. In eukaryotes, these are monocistronic and the coding sequence is interrupted by short sequences which donot appear in the mature mRNA called as intron. The coding sequence involved in expression of the protein is termed exon. Genes in prokaryotes are generally polycistronic and code for multiple proteins.
Codon is the particular sequence of three N-bases that represents a specific amino acid.

Topic: Biology, Molecular Basis of Inheritance, NEET
The part of a transistor which is most heavily doped to produce a large number of majority carriers is

Options:
A Emitter
B Base
C Collector
D can be any of the above three

The correct answer is:
Emitter

Solution:
The emitter is most heavily doped.

Topic: Physics, Semiconductors, NEET
The part of fallopian tube closest to the ovary is

Options:
A isthmus
B infundibulum
C cervix
D ampulla

The correct answer is:
infundibulum

Solution:
The fallopian tubes, uterus and vagina constitute the female accessory ducts. Each Fallopian tube extends from the periphery of each ovary to the uterus, the part closer to the ovary is funnel-shaped infundibulum, which help in collection of the ovum after ovulation.

Topic: Biology, Human Reproduction, NEET, NEET 2010 (Screening)
The part of large intestine which appears as a blind sac and harbours some microorganisms is called:

Options:
A Caecum
B Vermiform appendix
C Colon
D Rectum.

The correct answer is:
Caecum

Solution:
Large intestine: It is divisible into 3 regions:
a. Caecum: It is a small blind sac which is harbouring some symbiotic micro-organisms e.g. E.coli. The caecum opens into the colon.
b. Vermiform appendix: It is a vestigial organ arising from the caecum and it appears like a narrow finger-like tubular projection.
c. Colon: It is divided into 3 parts: ascending colon, transverse colon and descending colon.
d. Rectum: Descending colon opens into the rectum which has the anus as an exit.

Topic: Biology, Digestion and Absorption, NEET
The part of the sarcomere in which only myosin is present is termed as:

Options:
A A-Band
B I-Line
C M-Line
D H-Band

The correct answer is:
H-Band

Solution:
I-band or Isotropic band or Light band: It contains actin.
A-band or Anisotropic band or Dark band: It contains myosin.
Z-line: It is an elastic fibre which passes through the centre of each I band and bisects it.
M line: It is a thin fibrous membrane which passes through the centre of each A band.
Sarcomere: It is the part of the myofibril between two successive Z lines. It is also considered as the functional unit of contraction.
H-zone: In a resting state, the ends of thin filaments on either side of the thick filaments partially overlap the free ends of the thick filaments, leaving the central part of the thick filaments. This central part of thick filament is not overlapped by thin filaments and is termed as H zone.

Topic: Biology, Structural Organisation in Animals, NEET
The partial pressure of ethane over a solution containing 6.56 × 10–3g of ethane is 1 bar. If the solution contains 5.00 × 10–2g of ethane, then what shall be the partial pressure of the gas?

Options:
A 0.432 bar
B 0.762 bar
C 0.213 bar
D 0.368 bar

The correct answer is:
0.762 bar

Solution:
Correct Option is : (B)
0.762 bar

Topic: Chemistry, Solutions, NEET
The partial pressure of oxygen at alveoli (A) and blood capillary of lungs (B) will be:

Options:
A A: 104 mm Hg; B: 95 mm Hg
B A: 159 mm Hg; B: 95 mm Hg
C A: 104 mm Hg; B: 40 mm Hg
D A: 159 mm Hg; B: 95 mm Hg

The correct answer is:
A: 104 mm Hg; B: 95 mm Hg

Solution:
The partial pressure of oxygen in alveolar air is about 104 mm Hg, whereas the partial pressure of the oxygenated pulmonary venous blood is about 95 to 98 mm Hg.

Topic: Biology, Breathing and Exchange of Gases, NEET
The partial pressure of oxygen at the site A (alveoli of lungs) and B (oxygenated blood) is

Options:
A A: 104 mm Hg B: 95 mm Hg
B A: 159 mm Hg B: 95 mm Hg
C A: 104 mm Hg B: 40 mm Hg
D A: 159 mm Hg B: 95 mm Hg

The correct answer is:
A: 104 mm Hg B: 95 mm Hg

Solution:
The partial pressure of oxygen in alveolar air is about 104 mm Hg, whereas the partial pressure of the oxygenated pulmonary venous blood is about 95 to 98 mm Hg.

Topic: Biology, Breathing and Exchange of Gases, NEET
The partial pressure of oxygen at the site A and B in the following figure is

Options:
A A: 104 mm Hg B: 95 mm Hg
B A:Â 159Â mmÂ HgÂ Â B:Â 95Â mmÂ Hg
C A:Â 104Â mmÂ HgÂ Â B:Â 40Â mmÂ Hg
D A:Â 159Â mmÂ HgÂ Â B:Â 95Â mmÂ Hg

The correct answer is:
A: 104 mm Hg B: 95 mm Hg

Solution:
The partial pressure of oxygen in alveolar air is about 104 mmHg , whereas the partial pressure of the oxygenated pulmonary venous blood is about 95 to 98 mmHg .

Topic: Biology, Breathing and Exchange of Gases, NEET
The partial pressure of oxygen in the alveoli of the lungs is:

Options:
A Equal to that in the blood
B More than that in the blood
C Less than that in the blood
D Less than that of carbon dioxide

The correct answer is:
More than that in the blood

Solution:
The partial pressure of oxygen in alveoli of lungs is 104 mm of Hg that is more than that of blood in the pulmonary artery (40 mm of Hg).

Topic: Biology, Breathing and Exchange of Gases, NEET, NEET 2016 (Phase 2)
The partial pressure of oxygen in the alveoli of the lungs is:

Options:
A Equal to that in the blood
B More than that in the blood
C Less than that in the blood
D Less than that of carbon dioxide

The correct answer is:
More than that in the blood

Solution:
The partial pressure of oxygen in alveoli of lungs is 104 mm of Hg that is more than that of blood in the pulmonary artery (40 mm of Hg).

Topic: Biology, Breathing and Exchange of Gases, NEET
The partial pressures (in mmHg) of oxygen O2 and carbon dioxide CO2 at alveoli (the site of diffusion) are:

Options:
A pO2=104 and pCO2=40
B pO2=40 and pCO2=45
C pO2=95 and pCO2=40
D pO2=159 and pCO2=0.3

The correct answer is:
pO2=104 and pCO2=40

Solution:
Partial pressures (in mmHg) of O2 and CO2 at different sites of the body and in the atmosphere:

Respiratory Gases	Atmospheric pressure	Alveoli	Oxygenated Blood	Deoxygenated Blood	Tissues

O2	159	104	95	40	40

CO2	0.3	40	40	45	45

Topic: Biology, Breathing and Exchange of Gases, NEET, NEET 2021
The partially digested food in the stomach formed by the action of enzymes and acid is called

Options:
A micelle
B chyle
C faeces
D chyme

The correct answer is:
chyme

Solution:
The stomach stores the food for 4-5 hours. The food mixes thoroughly with the acidic gastric juice of the stomach by the churning movements of its muscular wall and is called the chyme.
The acidic chyme is formed by the action of lipase and protease enzyme in the stomach.

Topic: Biology, Digestion and Absorption, NEET
The particle emitted in the decay of U92238 to U92234

Options:
A 2Î± and 2Î²
B 1Î± and 2Î²
C 1Î±Â only
D 2Î² and 2Î±

The correct answer is:
1Î± and 2Î²

Solution:
U92238→αU90234 →β-1U91234→β-1U92234
Number of α -particle = 1
Number of β -particle = 2

Topic: Physics, Nuclear Physics, NEET
The particle executing simple harmonic motion has a kinetic energy $K_0 \cos ^2$ $\omega t$. The maximum values of the potential energy and the total energy are respectively.

Options:
A $K_0 / 2$ and $K_0$
B $K_0$ and $2 K_0$
C $K_0$ and $K_0$
D 0 and $2 K_0$.

The correct answer is:
$K_0$ and $K_0$

Solution:
$\because \mathrm{K}$. E. $=K_0 \cos ^2 \omega t$
$\therefore$ Maximum P. E. = Maximum K. E. $=$ Total energy $=\mathrm{K}_0$

Topic: Physics, Oscillations, NEET, NEET 2007
The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleaseure, rage, fear, etc. are:

Options:
A Corpus callosum and thalamus
B Limbic system & hypothalmus
C Corpora quadrigemina & hippocampus
D Brain stem & epithalamus

The correct answer is:
Limbic system & hypothalmus

Solution:
The cerebrum wraps around a structure called thalamus, which is a major coordinating centre for sensory and motor signaling. The hypothalamus lies at the base of the thalamus.

The hypothalamus contains a number of centres which control body temperature, urge for eating and drinking, along with secretion of hypothalamic hormones.

The inner parts of cerebral hemispheres and a group of associated deep structures like amygdala, hippocampus, etc., form a complex structure called the limbic lobe or limbic system. Along with the hypothalamus, this area is involved in the regulation of sexual behaviour, expression of emotional reactions (e.g., excitement, pleasure, rage and fear), and motivation.

Topic: Biology, Neural Control and Coordination, NEET, NEET 2023 (All India)
The passage through which movement of RNA and protein molecules takes place in both directions is

Options:
A nuclear pore
B Plasmodesmata.
C Kinetochores
D Nucleoli

The correct answer is:
nuclear pore

Solution:
Material can move in and out of the nucleus through nuclear pore. Especially, the RNA molecule is synthesized in the nucleolus and for protein synthesis in the cytoplasm they come out through the nuclear pore of the nucleus. The synthesized protein moves to the nucleus to perform replication, transcription etc. Plasmodesmata are the small pores in plant where the movement of all the molecules takes place, they are the place for communication between plant cells. Kinetochores are proteinaceous structure present at the side of the centromere for the attachment of spindle fibre during cell division.

Topic: Biology, Cell - The Unit of Life, NEET
The path difference between the two waves :

y1=a1sin⁡ωt-2πxλ and

y2=a2cos⁡ωt-2πxλ+ϕ is

Options:
A λ2πϕ
B λϕ+π22π
C 2πλϕ-π2
D 2πλϕ

The correct answer is:
λϕ+π22π

Solution:
Relation between phase difference and path difference.
Δϕ=2πλΔx
y1=a1sin⁡ωt-kx
y2=a2cos⁡ωt-kx+ϕ
y 2 = a 2 sin( ωt-kx+ϕ+ π 2 )
Δx=Δϕ2π×λ
=12ππ2+ϕλ

Topic: Physics, Waves and Sound, NEET
The path length of oscillation of simple pendulum of length 1 m is 16 cm. Its maximum velocity is g=Ï2 m s-2

Options:
A 2π cm s-1
B 4π cm s-1
C 8Ï cm s-1
D 16π cm s-1

The correct answer is:
8Ï cm s-1

Solution:
Path length = 1 6 cm
â´ Amplitude A = 8 cm
Period T=2Ï l g
=2Ï l Ï 2 =2 s
= 2 Ï Ã 1 Ï = 2 s
Maximum velocity V max = = a Ï
= A Ã 2 Ï Î¤
= 8 Ã 2 Ï 2
= 8Ï cm s-1

Topic: Physics, Oscillations, NEET
The path of a positively charged particle 1 through a rectangular region of a uniform electric field is shown in the figure. The directions of the uniform electric field and deflection of particles 2, 3 and 4 respectively are

Options:
A top, down, top, down
B top, down, down, top
C down, top, top, down
D down, top, down, down

The correct answer is:
top, down, top, down

Solution:
+ve charge diverts in the direction of field
â´Field must be toward top
particle (2) deflects down, (3) top (4) deflects down,

Topic: Physics, Electrostatics, NEET
The path of the scattered α- particles is

Options:
A Circular
B Parabolic
C Elliptical
D Hyperbolic

The correct answer is:
Hyperbolic

Solution:
No constant force will act towards a fixed point so path won't be circular.
No force will act towards a fixed point called focus so path won't be parabolic.
No force will act towards a fixed point called foci so path won't be parabolic.
Force will act from a fixed point so path will be rectangular hyperbola.

Topic: Physics, Atomic Physics, NEET
The pathogen causing African sleeping sickness belongs to

Options:
A Annelida
B Arthropoda
C Mollusca
D Protozoa

The correct answer is:
Protozoa

Solution:
Types of Protozoan protists:
I. Amoeboid protozoans: Amoeba (free-living), Entamoeba (parasitic)
II. Flagellated protozoans: Trypanosoma (Disease: African sleeping sickness)
III. Ciliated protozoans: Paramoecium
IV. Sporozoans: Plasmodium (malarial parasite)

Topic: Biology, Human Health and Diseases, NEET
The pathogen Epidermophyton responsible for ringworm disease in humans belongs to the same kingdom of organisms as that of

Options:
A Wuchereria, a roundworm
B Entamoeba, a protozoan
C Mucor, a mould
D Taenia, a tapeworm

The correct answer is:
Mucor, a mould

Solution:
Epidermophyton is a genus of fungi. This fungi causes ringworm infections. This belongs to Ascomycetes. This is known to cause infections of skin and nails. Mucor is a common mould. It is filamentous fungi found on decaying fruits and vegetables. Thus both belong to same kingdom i.e. Kingdom Fungi.

Topic: Biology, Biological Classification, NEET
The pathogen Microsporum responsible for ringworm disease in humans belongs to the same kingdom of organisms as that of:

Options:
A Taenia, a tapeworm
B Wuchereria, a filarial worm
C Rhizopus, a mould
D Ascaris, a round worm

The correct answer is:
Rhizopus, a mould

Solution:
The pathogen Microsporum is a genus of kingdom Fungi that cause diseases of skin and hair in humans and animals such as dog, cat, monkey.
Rhizopus, a black bread mold, belongs to group zygomycetes of kingdom Fungi.

Topic: Biology, Biological Classification, NEET
The pathway of blood from left ventricle of the heart to the right atrium is

Options:
A pulmonary circulation
B systemic circulation
C open circulation
D both a and b

The correct answer is:
systemic circulation

Solution:
Humans show double circulation. This includes two circuits: pulmonary and systemic. Pulmonary means blood from the heart enters the lungs and then back to the heart. It includes the right ventricle, lungs, and left auricle. Systemic circulation is blood from the heart enters the body systems and then back to the heart. The blood from the left ventricle enters the body through the aorta and this is oxygenated blood. The blood then returns back to the right auricle and this is deoxygenated blood.

Topic: Biology, Body Fluids and Circulation, NEET
The patient is given an anti-venom injection for snakebite is a classic example of

Options:
A Active immunization
B Passive immunization
C Innate immunization
D All of these

The correct answer is:
Passive immunization

Solution:
The immunity process where the body is not spending energy or effort in making antibodies rather obtained from outside as ready-made is termed as passive immunity. Antivenom injection contains performed injection which is directly injected into the body giving a quick immune response. Since the antibodies are directly given and not made in the body, antivenom treatment is considered as passive immunity.

Topic: Biology, Human Health and Diseases, NEET
The pattern of biodiversity is affected by

Options:
A latitudinal gradients
B species-area relationships
C both a and b
D None of the above

The correct answer is:
both a and b

Solution:
Biodiversity patterns are observed within communities, habitats, ecosystems, species and it is affected by species area relationships as well as latitudinal gradients. The diversity reduces as we move away from tropical region to temperate region.

Topic: Biology, Biodiversity and its Conservation, NEET
The peak voltage in a 220 V AC source is

Options:
A 220Â V
B about 160 V
C about 310 V
D 440Â V

The correct answer is:
about 310 V

Solution:
Given root mean square voltage,
Vrms=220 V
Peak voltage will be given by,
Vpeak=2 Vrms
Vpeak=2 220
Vpeakâ310 V

Topic: Physics, Alternating Current, NEET
The peak voltage in the output of a halfwave diode rectifier fed with a sinusiodal signal without filter is $10 \mathrm{~V}$. The d.c. component of the output voltage is:

Options:
A $\frac{10}{V}$
B $\frac{10}{V}$
C $\mathrm{V}$
D $\frac{20}{V}$

The correct answer is:
$\frac{10}{V}$

Solution:
$$
V_a=\frac{V_m}{\pi}=\frac{10}{\pi}
$$

Topic: Physics, Semiconductors, NEET, NEET 2004
The peak voltage of the ac source is equal to

Options:
A the rms value of the ac source
B 2 times the rms value of the ac source
C 12 times the rms value of the ac source
D the value of voltage supplied to the circuit

The correct answer is:
2 times the rms value of the ac source

Solution:
RMS voltage is related to peak voltage by relation eRMS=e02.

Thus, peak voltage of the AC source is e0=2eRMS.

Topic: Physics, Alternating Current, NEET, NEET 2022 (Phase 1)
The pectoral and pelvic girdles and the bones of limb form

Options:
A Axial skeleton
B Appendicular skeleton
C Visceral skeleton
D Outer skeleton

The correct answer is:
Appendicular skeleton

Solution:
The appendicular skeleton is situated at the lateral sides which actually extend outwards from the principal axis. It consists of the pectoral and pelvic girdle and bones of arms and legs.

Topic: Biology, Locomotion and Movement, NEET
The percentage change in internal energy, when a gas is cooled from 927 Â°C to 27 Â°C, is

Options:
A 75%
B 300%
C 50%
D 100%

The correct answer is:
75%

Solution:
Here, T1=927 ℃=927+273 K=1200 K
T2=27 ℃=27+273 K=300 K
As U∝T
∴ ∆UU1=U1-U2U1=1200-3001200×100=75%

Topic: Physics, Thermodynamics, NEET
The percentage error in the measurement of $g$ is $\left(\right.$ Given that $g=\frac{4 \pi^2 \mathrm{~L}}{\mathrm{~T}^2}, \mathrm{~L}=(10 \pm 0.1) \mathrm{cm}$, $\mathrm{T}=(100 \pm 1) \mathrm{s}):$

Options:
A $2 \%$
B $5 \%$
C $3 \%$
D $7 \%$

The correct answer is:
$3 \%$

Solution:
Given:
$\begin{aligned}
g & =\frac{4 \pi^2 \mathrm{~L}}{\mathrm{~T}^2} \\
\mathrm{~L} & =(10 \pm 0.1) \mathrm{cm}, \text { and } \\
\mathrm{T} & =(100 \pm 1) \mathrm{s}
\end{aligned}$
Hence, error in measurement of $g$ is
$\begin{aligned}
\frac{\Delta g}{g} & =\frac{\Delta \mathrm{L}}{\mathrm{L}}+2 \frac{\Delta \mathrm{T}}{\mathrm{T}} \\
& =\frac{0.1}{10} \times 100+2 \times \frac{1}{100} \times 100 \\
& =3 \%
\end{aligned}$

Topic: Physics, Mathematics in Physics, NEET, NEET 2022 (Phase 2)
The percentage errors in quantities P, Q, R and S are 0.5%, 1%, 3% and 1.5% respectively in the measurement of a physical quantity A= P 3 Q 2 R S . The maximum percentage error in the value of A will be:

Options:
A 6.5 %
B 7.5Â %
C 6.0Â %
D Â 8.5Â %

The correct answer is:
6.5 %

Solution:
100ÃâAA=3âPP+2âQQ+12âRR+âSSÂ Ã100
max % error in A =3 Ã0.5+2 Ã1+12 Ã3+1.5
=1.5+2+1.5+1.5
= 6.5 %

Topic: Physics, Units and Dimensions, NEET