भौतिकी के सूत्र

एसआई उपसर्ग (प्रीफिक्स)

 आधारभूत यांत्रिकी (Fundamentals of Mechanics) 
Foundational equations in translation and rotation.
 Quantity Translation Rotationसमयस्थिति in radiansद्रव्यमानसमयान्तरविस्थापनद्रव्यमान संरक्षणऊर्जा संरक्षणसंवेग संरक्षणवेगत्वरणझटकास्थितिज ऊर्जा परिवर्तनसंवेग बल जड़त्व आघूर्णआवेगकार्यशक्तिगतिज ऊर्जान्यूटन का तीसरा नियम

Every conservative force has a potential energy. By following two principles one can consistently assign a non-relative value to U:
 Wherever the force is zero, its potential energy is defined to be zero as well.
 Whenever the force does work, potential energy is lost.

 स्थिर त्वरण (Constant acceleration) 
Equations in translation and rotation, assuming constant acceleration.
 भौतिक राशि रेखीय गति घुर्णन गतिविस्थापनसमयत्वरणप्रा०वेगअंतिमवेग

 एकसमान वृत्तीय गति (Uniform circular motion) 
uniform circular motion angular to linear displacementuniform circular motion angular to linear speeduniform circular motion angular to linear acceleration normal componentuniform circular motionuniform circular motion tangential speeduniform circular motion tangential component, scalaruniform circular motion centripetal accelerationuniform circular motion centripetal acceleration scalaruniform circular motion centripetal forceuniform circular motion revolution time

 Elasticity 
elastic force, lies parallel to springelastic potential energyelastic work, positive when relaxes

 घर्षण (Friction) 
normal forcestatic friction maximum, lies tangent to the surfacekinetic friction, lies tangent to the surfacedrag force, tangent to the pathterminal velocityfriction creates heat and sound

 प्रतिबाधा एवं विकृत्ति (Stress and strain) 
stressstrainmodulus of elasticityyield strengthultimate strengthYoung's modulusshear modulusbulk modulus

 अन्य 
inertial frames . . . . . .trajectoryflight distancetension, lies within the cordmechanical energymechanical energy is conserved when all forces are conservativethrustideal rocket equationparallel axis theoremlist of moments of inertiaindeterminate systems

 द्रब्यमान केन्द्र एवं संघट्ट (Center of mass and collisions) 
center of mass COM . . .for constant density:COM is in all planes of symmetryelastic collisioninelastic collisionmaximumconservation of momentum in a two body collisionsystem COM remains inertelastic collision, 1D, M2 stationary . . .

 चिकने तल पर लुढ़कना (Smooth rolling) 
rolling distancerolling distance ?rolling velocityrolling ?rolling down a ramp along axis x

 उष्मागतिकी (Thermodynamics) 
Zeroth Law of Thermodynamics(where "=" denotes systems in thermal equilibriumFirst Law of ThermodynamicsSecond Law of ThermodynamicsThird Law of Thermodynamicstemperaturemoleculesdegrees of freedomheat,  due to  (energy)thermal mass (extensive property)specific heat capacity (bulk property)enthalpy of vaporizationenthalpy of fusionthermal conductivitythermal resistancethermal conduction ratethermal conduction rate through a composite slablinear coefficient of thermal expansionvolume coefficient of thermal expansionBoltzmann constant (energy)/(temperature)Stefan-Boltzmann constant (power)/(area)(temp)^4thermal radiationthermal absorptionadiabaticideal gas lawwork, constant temperaturework due to gas expansion. . . adiabatic. . . constant volume. . . free expansion. . . closed cyclework, constant volumework, constant pressuretranslational energyinternal energymean speedmode speedroot mean square speedmean free path?Maxwell–Boltzmann distributionmolecular specific heat at a constant volume?molecular specific heat at a constant pressure??adiabatic expansionadiabatic expansionmultiplicity of configurationsmicrostate in one half of the boxBoltzmann's entropy equationirreversibilityentropyentropy changeentropy changeentropic forceengine efficiencyCarnot engine efficiencyrefrigeration performanceCarnot refrigeration performance

 तरंग 
torsion constantphasornodeantinodeperiodamplitudedecibelfrequencyangular frequencyphase anglephasedamping forcephasewavenumberphase constantlinear densityharmonic numberharmonic serieswavelengthbulk moduluspath length differenceresonancephase differencefully constructive interferencefully destructive interferencesound intensitysound power sourcesound intensity over distancesound intensity standard referencesound levelpipe, two open endspipe, one open end for n oddbeatsbeat frequencyDoppler effectsonic boom angleaverage wave powerpressure amplitudewave equationwave superpositionwave speedspeed of soundwave speed on a stretched stringangular frequency of an angular simple harmonic oscillatorangular frequency of a low amplitude simple pendulumangular frequency of a low amplitude physical pendulumangular frequency of a linear simple harmonic oscillatorangular frequency of a linear damped harmonic oscillatorwave displacementwave displacement when dampedwave velocitywave accelerationtransverse wavewave traveling backwardsresultant wavestanding wavesound displacement functionsound pressure-variation functionpotential harmonic energykinetic harmonic energytotal harmonic energydamped mechanical energy

 गुरुत्वाकर्षण (Gravitation) 
gravitational constant (force)(distance/mass)^2gravitational forcesuperposition appliesgravitational accelerationfree fall accelerationshell theorem for gravitationpotential energy from gravityescape speedKepler's law 1planets move in an ellipse, with the star at a focusKepler's law 2Kepler's law 3orbital energystandard gravityweight, points toward the center of gravitypath independenceEinstein field equations

 तरलगतिकी (Fluid dynamics) 
densitypressurepressure differencepressure at depthbarometer versus manometerPascal's principleArchimedes' Principlebuoyant forcegravitational force when floatingapparent weightideal fluidequation of continuity constantBernoulli's equation constant

 विद्युतचुम्बकत्व (Electromagnetism) 
Lorentz forceGauss' lawGauss' law for magnetic fieldsFaraday's law of inductionAmpere-maxwell lawelementary chargeelectric chargeconservation of chargelinear charge densitysurface charge densityvolume charge densityelectric constant (time)^2(charge)^2/(mass)(volume)magnetic constant (force)(time)^2/(charge)^2Coulomb's lawelectric fieldelectric field linesend at a negative chargeGaussian surfaceflux notation implies a normal unit vectorelectric fluxmagnetic fluxmagnetic flux given assumptionsdielectric constantdielectricGauss' law with dialectricBiot-Savart lawLenz's lawinduced current always opposes its causeinductance (with respect to time)inductance from coilsinductance of a solenoiddisplacement currentdisplacement vectorelectric dipole momentelectric dipole torqueelectric dipole potential energymagnetic dipole moment of a coil, magnitude onlymagnetic dipole moment torquemagnetic dipole moment potential energyelectric field accelerating a charged masselectric field of a charged pointelectric field of a dipole momentelectric field of a charged lineelectric field of a charged ringelectric field of a charged conducting surfaceelectric field of a charged non-conducting surfaceelectric field of a charged diskelectric field outside spherical shell r>=Relectric field inside spherical shell r<Relectric field of uniform charge r<=Relectric field energy densityelectric potential versus electric potential energy(energy)/(charge) versus (energy)electric potential energyelectric potentialelectric potential differenceelectric potential from electric fieldelectric field from electric potentialelectric potential of a charged pointelectric potential of a set of charged pointselectric potential of a dipoleelectric potential of continuous chargeelectric potential energy of a pair of charged pointscapacitance (charge)^2/(energy)capacitance of parallel platescapacitance of a cylindercapacitance of a spherecapacitance of an isolated spherecapacitors in parallelcapacitors in seriescapacitor potential energycurrentdrift speedcurrent densitycurrent density magnitudecurrent density to get currentresistanceresistivityresistivity temperature coefficientresistivity across temperatureresistivity and resistanceelectrical conductivityresistor power dissipationinternal resistanceresistors in seriesresistors in parallelKirchoff's current lawOhm's lawemfemf rulesloop, resistance, emfelectrical poweremf powerelectric potential difference across a real batterymagnetic field force on a moving chargemagnetic field force on a currentHall effectcirculating charged particlecyclotron resonance conditionmagnetic field of a linemagnetic field of a raymagnetic field at the center of a circular arcmagnetic field of a solenoidmagnetic field of a toroidmagnetic field of a current carrying coilself induction of emfmagnetic energymagnetic energy densitymutual inductiontransformation of voltagetransformation of currenttransformation of reistanceinduced magnetic field inside a circular capacitorinduced magnetic field outside a circular capacitorRC circuit ODE with respect to timeRC circuit capacitive time constantRC circuit charging a capacitorRL circuit ODE with respect to timeRL circuit time constantRL circuit rise of currentRL circuit decay of currentLC circuit ODE with respect to timeLC circuitLC circuit chargeLC circuit currentLC circuit electrical potential energyLC circuit magnetic potential energyRLC circuit ODE with respect to timeRLC circuit chargeresistive loadcapacitive loadinductive loadresistive reactancecapacitive reactanceinductive reactancephase constantelectromagnetic resonanceAC currentAC voltageAC emfAC power

 प्रकाश (Light) 
electric light componentmagnetic light componentspeed of lightPoynting vectorPoynting vector magnituderms electric field of lightlight intensitylight intensity at the sphereradiation momentum with total absorption (inelastic)radiation momentum with total reflection (elastic)radiation pressure with total absorption (inelastic)radiation pressure with total reflection (elastic)intensity from polarizing unpolarized lightintensity from polarizing polarized lightindex of refraction of substance fangle of reflectionangle of refractionangle of total reflectionangle of total polarisationimage distance in a plane mirrorimage distance in a spherical mirrorspherical mirror focal lengthspherical mirrorlateral magnification m and h negative when upside downlens focal lengthlens focal length from refraction indexespath length differencedouble slit minimadouble slit maximadouble-slit interference intensitythin film in air minimathin film in air maximasingle-slit minimasingle-slit intensitydouble slit intensity. . .circular aperture first minimumRayleigh's criteriondiffraction grating maxima linesdiffraction grating half-widthdiffraction grating dispersiondiffraction grating resolving powerdiffraction grating lattice distance

 विशिष्ट आपेक्षिकता (Special Relativity) 
Lorentz factorLorentz transformation. . .. . .. . .time dilationlength contractionrelativistic Doppler effectDoppler shiftmomentumrest energytotal energyEnergy Removedkinetic energy

 कण भौतिकी (Particle Physics) 
standard modelsee 4x4 chart of particlesPlanck's constant, in energy/frequencyReduced Planck's constant, in energy/frequencyPlanck–Einstein equationthreshold frequencywork functionphotoelectric kinetic energyphoton momentumde Broglie wavelengthSchrodinger's equationSchrodinger's equation one dimensional motionSchrodinger's equation free particleHeisenberg's uncertainty principleinfinite potential wellwavefunction of a trapped electron, for positive int nwavefunction probability densitynormalizationhydrogen atom orbital energy, for positive int nhydrogen atom spectrumhydrogen atom radial probability densityspin projection quantum numberorbital magnetic dipole momentorbital magnetic dipole moment componentsspin magnetic dipole momentorbital magnetic dipole momentspin magnetic dipole moment potentialorbital magnetic dipole moment potentialBohr magnetonangular momentum componentsspin angular momentum magnitudecutoff wavelengthdensity of statesoccupancy probabilityFermi energymass numbernuclear radiusmass excessradioactive decayHubble constantHubble's lawconservation of lepton numberconservation of baryon numberconservation of strangenesseightfold wayweak forcestrong forceNoether's theoremElectroweak interaction:Quantum electrodynamics:

 क्वांटम यांत्रिकी (Quantum Mechanics) 
Postulate 1: State of a systemA system is completely specified at any one time by a Hilbert space vector.Postulate 2: Observables of a systemA measurable quantity corresponds to an operator with eigenvectors spanning the space.Postulate 3: Observation of a systemMeasuring a system applies the observable's operator to the system and the system collapses into the observed eigenvector.Postulate 4: Probabilistic result of measurementThe probability of observing an eigenvector is derived from the square of its wavefunction.Postulate 5: Time evolution of a systemThe way the wavefunction evolves over time is determined by Shrodinger's equation.

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