Subject Physics Medium ENGLISH
Faculty SSI Sir Status AVAILABLE
Category COMPLETE COURSE Lecture 166
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Geometrical optics

Lecture# Description Duration
01 law of rectilinear propagation of light, Law of independence of light rays, Law of reversibility, Laws of reflections, types of reflection, regular  and  diffused reflection, Plane  mirror, definition of Object and Image, virtual and real Object/Image. Image formation by plane mirror, Important points about Image formation by plane mirror, motion of object and its Image 52 Minutes
02 Problems on motion of object and image in 3D, Rotation of Mirror and Incident ray  46 Minutes
03 Problems , Images formed by two mutually inclined mirrors, field of view-  50 Minutes
04 Problems, Angle of deviation due to reflection  16 Minutes
05 Curved mirrors, some definitions (terms) related with curved mirrors. Paraxial rays, focal plane.  42 Minutes
06 sign conventions,  Mirror formula, magnifications 28  Minutes
07 ray diagram  28 Minutes
08 problems, some examples, multiple reflections  34 Minutes
09 motion of object and image, lateral magnifications  46 Minutes
10 1/v versus 1/u graphs, U-V graphs, Newton’s mirror formula  59 Minutes
11 Refraction, Refractive index, Snell’s laws, some important points to remember, refraction through plane surface and parallel slabs.  46 Minutes
12 Image formation due to refraction through plane surface, actual depth and apparent depth, problems 41  Minutes
13 Lateral shift, Normal shift, combination of mirror and slabs 42  Minutes
14 critical angle, total internal reflection, circle of illuminance, deviation due to refraction through plane surface  40 Minutes
15 Prsim, Prism angle, angle of emergence, deviation by prism, condition for no emergence, angle of  deviation by prism in terms of angle of incidence and angle of emergence. Condition for minimum deviation, minimum deviation  41 Minutes
16 maximum deviation,thin prisms,  deviation by thin prism 23  Minutes
17 Cauchy’s equation, dispersion, mean deviation, angular dispersion, Dispersive power of Prism, combination of Prisms, Achromatic combination ,combination for direct vision  54 Minutes
18 Refraction through curved surface, formula relating “v” and “u”,  27 Minutes
19 Problems lateral and longitudinal magnification, motion of object and image.  27 Minutes
20 Thin lenses, classification of thin lenses, Lens maker’s formula and Lens formula-  35 Minutes
21 lateral and longitudinal magnification, Ray diagrams,  28 Minutes
22 sign convention, Image formation, Problems,  45 Minutes
23 problems , some important points to remember  28 Minutes
24 motion of Object and  image, , 1/v versus 1/u graphs, U-V graphs-  39 Minutes
25 power of lens, combination of lenses in contact. Combination of two lenses separated by distance “d”, combination of lenses and mirror in contact, focal  length when one face of a thin lens is silvered  56 Minutes
26 Displacement method to find the focal length of a lens,  15 Minutes



Lecture# Description Duration
01 Introduction to charge, properties of charge 43  Minutes
02 Coulombs law, permittivity, relative permittivity, principal of superposition 52 Minutes
03 Electric field and its strength due to a point charge , due to circular arc , due to circular ring 35 Minutes
04 Electric field due to circular disc, infinite layer of charge , due to large conducting and non conducting sheets 43 Minutes
05 Electric field due to straight conductor and related problems 40 Minutes
06 Electric field due to non conducting solid sphere , hollow sphere and related problems 43 Minutes
07 Electric field inside cavity and electrostatic pressure. 25 Minutes
08 Electric potential, Electric potential due to a point charge , due to circular arc , due to circular ring , due to circular disc 31 Minutes
09 Relation between electric field and electric potentials , Electric field due to Non conducting solid sphere and hollow sphere 48 Minutes
10 potential difference due to infinite layer of charge and infinitely long line charge, Equipotential surface 34 Minutes
11 Electric potential energy, potential energy of two point charge system , potential energy of point charge system, methods to find the potential energy of point charge system 42 Minutes
12 self energy of hollow sphere, self energy of solid sphere, energy density , Potential energy of interaction 41 Minutes
13 Problems on self energy and interaction energy ,  Electric line of forces (ELOF), properties of  ELOF 17 Minutes
14 Electric flux, solid angle and use of solid angle to find the electric flux 58 Minutes
15 Gauss theorem, uses of Gauss theorem to find electric field due to hollow sphere 28 Minutes
16 Electric field due to solid sphere/long line charge/solid cylindrical charged body/hollow cylindrical charged body by using gauss theorem 31 Minutes
17 Electric dipole, Electric dipole moment, Electric field due to dipole on axial point/equatorial line/at general point 32 Minutes
18 Electric potential due to dipole on axial point/equatorial line/at general point, Force and Torque experienced by a dipole in external uniform electric field, potential energy of dipole in external uniform electric field, force on dipole in non uniform electric field, force between two dipoles 52 Minutes
19 Conductor, Earthing of  a conductor , electrostatic shielding 28 Minutes
20 charge distribution on inner and outer surface of concentric conducting spheres, , when two charged conductors are connected by a conducting wire 39 Minutes
21 charge distribution on a conductor surfaces in the presence of external electric field 52 Minutes


Lecture# Description Duration
01 Newton’s law of gravitation, gravitational field due to point mass, circular arc, circular ring, circular disc, long rod, infinite plate, hollow sphere and solid sphere  43 Minutes
02 Variation in acceleration due to gravity with height and depth, effect of rotation of earth, effect of shape of earth.   27 Minutes
03 Gravitational potential, gravitational potential due to point mass, circular arc, circular ring, circular disc, hollow sphere, solid sphere, relation b/w gravitational field and gravitational potential  31 Minutes
04 Gravitational potential energy, P.E. of two point mass system, self energy of hollow sphere and solid sphere, miscellaneous examples  30 Minutes
05 Motion of satellite, orbital velocity, time period, energy of satellite, binding energy, escape velocity, geostationary satellite  26 Minutes
06 Kepler's  laws,  path of a satellite according to its projection velocity.  Miscellaneous examples  47 Minutes

Current Electricitty

Lecture# Description Duration
01 Current definition, Instantaneous current, Average current, current due to Circular and Translational motion of charge, Current through a conductor, Current density 33 Minutes
02 mechanism of current flow. Relaxation time. Mean Free Path, Drift velocity, Resistance, Resistivity, Conductivity, Ohm’s law, Relation b/w current density & Electric field 29 Minutes
03 Calculation of Resistance in different cases, , dependence of resistance on length & cross sectional area when wire is stretched, Effect of temperature on Resistance, Resistance in 2 D & 3 D current flow. 31 Minutes
04 Battery, EMF, some important points about electrical circuits, Potential difference across battery, short circuit, and maximum power dissipated by a battery 1 Hrs 04 Minutes
05 Kirchhoff’s junction law and voltage/loop law. Point potential method to solve the circuits. 37 Minutes
06 combination of resistances, series and parallel combinations, Wheat stone bridge, 39 Minutes
07 Method of symmetry, Infinite series of Resistances 38 Minutes
08 combination of batteries .series and parallel combination of batteries,mixed combinations, combination of ideal batteries. 40 Minutes
09 Electrical instruments, Galvanometer, sensitivity of Galvanometer, conversion of Galvanometer into Ammeter and Voltmeter. 45 Minutes
10 Problems on galvanometer, ammeter and voltmeter 28 Minutes
11 Potentiometer, Uses of Potentiometer to compare the EMF's of two batteries, to find the internal resistance and EMF of a battery, Meter bridge, zero error 51 Minutes
12 Post-office box, rating of electrical instruments like bulb and heater 45 Minutes

Heat transfer

Lecture# Description Duration
01 Methods of heat transfer, conduction, convection and radiation. steady state, temperature gradient. Laws of conduction. Analogy with electric current 31 Minutes
02 Problems on conduction, 1D heat transfer, 2D heat transfer, 3D heat transfer. Formation of ice layer on lake water surface 36 Minutes
03 Convection, Radiation, Reflection power, Absorption power, Transmittance power, Black body. Ferry’s block body. Emissive power of a body, Spectral emissive power, absorptive power, spectral absorptive power.  Emissivity of a body, Prevost's heat exchange theory 34 Minutes
04 Kirchhoff’s law of radiation, Stefan’s law of heat radiation, rate of cooling 
Newton’s law of cooling
24 Minutes
05 Average temperature method, integration method. Black body radiation, Wien's displacement law, solar constant 27 Minutes



Lecture# Description Duration
01 Introduction to capacitor, types of capacitor, parallel plate capacitor, spherical capacitor, cylindrical capacitor 43 Minutes
02 energy stored in a capacitor, work done by battery, heat loss, energy density,some problems.a conductor as a capacitor  41 Minutes
03 Combination of capacitors, series & parallel combination. wheat stone bridge 36 Minutes
04 Method of symmetry, Infinite series, point potential method, important problems Combination of two charged capacitors, some important problems 49 Minutes
05 Problems on combinations of charged capacitors, combinations of conductors- 42 Minutes
06 Charging of capacitor, variation of charge , voltage and current with time ,steady state, graphs 34 Minutes
07 Discharging of capacitor, time constant, variation in charge, voltage, current with time. Method to find the time constant of a circuit 39 Minutes
08 Circuits with capacitors and resistors, problems 31 Minutes
09 Dielectrics b/w plates of capacitor change in capacitance, charge and energy with dielectric. 29 Minutes
10 Some important problems related to dielectric 29 Minutes
11 Force on dielectric when battery remains connected, motion of dielectric. Force on dielectric when battery is removed, leakage current, dielectric strength 36 Minutes

Magnetic field

Lecture# Description Duration
01 Natural magnet ,pole strength , magnetic dipole moment 20 Minutes
02 magnetic field produced by Natural magnet at axial point , at Equatorial point and at general point, natural magnet in external magnetic field, Force ,Torque and potential energy of a magnet in external magnetic field. Force between two magnets- 37 Minutes
03 magnetic effect of  charge and current, some important points , Right hand screw rule 28 Minutes
04 Biot savort’s law , Right hand palm rule. Magnetic field produced by straight conductor 30 Minutes
05 Shape of magnetic lines of forces around a conductor, some important problems 43 Minutes
06 Circular arc and circular loop, solenoid and troid, magnetic field produced by solenoid and toroid 53 Minutes
07 Magnetic field produced by moving charge, Biot savort’s law for moving charge. Magnetic field due to circular motion of charge 26 Minutes
08 closed loop as a magnet . . magnetic dipole moment of closed loop, magnetic dipole moment of rotating charged bodies 26 Minutes
09 ampere’s law , application of ampere’s law to find the magnetic field due to straight long conductor and long cylindrical conductor 29 Minutes
10 problems on  magnetic field due to cylindrical cavity inside a cylindrical conductor 25 Minutes
11 Lorentz’s force, magnetic force on moving charge, motion of charge in external magnetic field , motion on circular path, important problems 47 Minutes
12 motion of charge  on helical path with constant pitch, motion on helical path with increasing pitch, 34 Minutes
13 Motion of charge  on cycloid path 27 Minutes
14 magnetic force on a current carrying conductor, magnetic force between two straight current carrying conductors 27 Minutes
15 Important problems ,magnetic force and torque on closed loop in external magnetic field 28 Minutes
16 Earth as a magnet, magnetic and geographical axis, magnetic and geographical meridian, angle of declination, angle of dip, horizontal & vertical component of earth’s magnetic field 29 Minutes

Electromagnetic induction (EMI)

Lecture# Description Duration
01 Magnetic flux, Faraday’s law, EMF induced, EMF induced due to change in area of loop, due to change in magnetic field ,due to rotation of loop, Lenz’s rule, examples 35 Minutes
02 Important Examples on Lenz’s rule 23 Minutes
03 Motional EMF, calculation of motional EMF, use of Motional EMF in circuit as battery, 32 Minutes
04 Important problems on motional EMF 38 Minutes
05 motional EMF due to rotation of conductor in external magnetic field. 24 Minutes
06 Induced electric field due to varying magnetic field, Calculation of Induced electric field in varying magnetic field in cylindrical region 36 Minutes
07 Self inductance, Inductor, potential difference across an inductor, Energy stored in an inductor, Inductor in a circuit 27 Minutes
08 Current Growth in an inductor, Time constant, current decay in an inductor 37 Minutes
09 Mutual induction, Mutual Inductance ,combination of inductors, series and parallel combination, 35 Minutes
10 LC oscillator and problems 28 Minutes


Alternating current (AC)

Lecture# Description Duration
01 AC/DC introduction, RMS and Average value of Alternating EMF and current, 35 Minutes
02 Important problems , AC circuits, circuit containing Resistor only, circuit containing capacitor  only, circuit containing Inductor  only 36 Minutes
03 Steps to find instantaneous current in AC circuit, reactance, Impendence,  phasor diagram, LCR series circuit, Quality factor 38 Minutes
04 LC circuit, RC circuit, LR circuit. Examples on AC series circuits 32 Minutes
05 Average  and instantaneous power , Apparent  power , power factor, wattles current Parallel AC circuits 52 Minutes
06 Problems on parallel circuits , Choke coil and Transformer 50 Minutes


Modern Physics

Lecture# Description Duration
01 Dual nature of Light, matter-waves, Debroglie’s formula for wavelength of  matter-waves. Graphes relating different parameters of Photon and matter waves, example 41 Minutes
02 Photometry, Energy of Photon, power incident and Intensity of light assuming particle nature of light, Impulse , Force & Pressure exerted by incident Photons 56 Minutes
03 Problems on photometry, motion of Photon under gravity 24 Minutes
04 Photo electric Effect, Work function of a metal, Threshold Energy/Threshold frequency/Threshold wavelength of an incident photon, Maximum kinetic energy of photo-electron, Graphs 37 Minutes
05 Photo-current, Saturation current, stopping potential, problems 50 Minutes
06 graphs plotted by Einstein and conclusions from those graphs, Failure of classical wave theory and  explanations given by quantum theory 23 Minutes
07 Atomic structure, Dalton’s law, Thomson’s Plums pudding theory, Rutherford’s Atomic model, Bohr’s  Atomic model and his 4 postulates 24 Minutes
08 Bohr model and  Derivations for Radius of orbit, Energy of Orbit, velocity of electron in an orbit, frequency of electron 31 Minutes
09 q/m ratio in an orbit,Ground and Excited states, Ionisation Energy and ionisation  potential, Excitation Energy and Excitation potential, Binding energy of electrons 28 Minutes
10 Hydrogen emission spectrum, Lymen series, Balmer series, Paschen series, Pfund series, series limits 38 Minutes
11 Recoil speed of atoms , problems on atomic structure ,Hydrogen absorption spectrum 28 Minutes
12 Atomic collisions, problems on atomic collisions 27 Minutes
13 Energy and radius of orbit when nucleus in motion.X-ray introduction, Production of X-ray, Types of  X-rays, continuous X rays. accelerating voltage 41 Minutes
14 Characteristics X-rays, cut-off wavelength, ,K-alpha/K-beta/L-alpha/L-beta characteristics X-rays and their wavelength/ frequency, Mosley’s law ,Graphs and problems on X-rays 35 Minutes

Nuclear Physics

Lecture# Description Duration
01 introduction to nucleus , Atomic number, mass number, Isotopes, Isobars, Isotones,   Radius of nucleus, density of nucleus, forces inside nucleus, strong nuclear force, stability   of nucleus & N/Z ratio. 27 Minutes
02 Mass defect, Binding Energy, calculation of Binding energy, examples, alpha-particles, Beta particles, positron, neutrino, anti-neutrino 34 Minutes

Alpha particle emission, kinetic energy of alpha- particle and Gama-particle, Beta

         particle Emission, positron emission, K-capture
35 Minutes
04 Radioactivity, Law of disintegration, statistical law , decay constant, Activity of a sample ,Half life of a sample, Average life of a sample, Carbon Dating 37 Minutes
05 disintegration with production, successive Disintegration, simultaneous disintegration 27 Minutes
06 Binding energy per nucleon, stability of a nucleus depending on B/A, fission reaction, Fusion reaction, 24 Minutes
07 Nuclear reactor, types of reactors, Moderator, coolant, control rods,   Critical mass 25 Minutes


Wave Optics

Lecture# Description Duration
01 Wave nature of light, Wave front, wave fronts for point source/line source/plane source. Hygiene’s principle for wave nature of light, Maxwell’s electromagnetic wave theory of light, 34 Minutes
02  Interference of light waves, constructive and destructive interference of light, sustainable interference 31 Minutes
03 Young’s double slit experiment (YDSE), path difference, positions of bright and dark fringes, Fringe width, Total no. of maximas and minimas formed on screen, 26 Minutes
04 Problems on YDSE , YDSE with white light 23 Minutes
05 optical path difference, shift in fringe pattern when slabs are placed in front of slits , YDSE with oblique incidence 31 Minutes
06 YDSE with slabs and oblique incidence ,YDSE when apparatus Immersed inside liquid and slabs are also placed in front of slits, when slits are placed horizontally instead of vertical.Interference through thin films, Lloyd’s mirror, Fresnel’s Biprism 39 Minutes


Error & Measurement

Lecture# Description Duration
01 significant figures ,Least count , maximum uncertainity , rules to find significant figures  

Significant figures in arithmetic operations like addition/substraction/multiplication/division , rules of rounding , Least count , maximum permissible error, problems

03 Maximum permissible error in a dependent quantity. Fractional error, percentage error , other types of errors like errors due to external causes , instrumental errors , personal error/ chance errors. Errors in averaging in experiment, absolute errors. Example.  

measurement by screw gauge , its Least count , measurement by vernier callipers , its Least count  , zero error , examples.




Lecture# Description Duration
01 Energy band , valence band , conduction band , P type semi conductor and N type semi conductor , Holes , Doping 31 Minutes
02 Motion of Holes , current in semiconductor , conductivity of semiconductor , mobility of holes and electrons 21 Minutes
03 PN junction, biasing of PN junction, forward biased PN junction and Reversed biased PN junction, diffusion current and drift current, break down of PN junction diode, Zener and avalanche breakdown. 35 Minutes
04 Uses of PN junction as Rectifier , half wave rectifier , full wave rectifier, transistor , PNP transistor and NPN transistor 36 Minutes
05 Biasing of a transistor , basic transistor circuits , how transistor works? Uses of transistor as amplifier 37 Minutes
06 Uses of transistor as switch and in LC oscillation circuit , digital electronics, number systems ,decimal and binary number system 37 Minutes
07 Logic gates, Boolean expressions , OR gate ,  AND gate , NOT gate and truth table. 28 Minutes
08 NOR gate , NAND gate and XOR gate 23 Minutes

Electromagnetic waves

Lecture# Description Duration
01 Ampere Maxwell law, displacement current, electromagnetic wave, its properties and equation of electromagnetic waves. Intensity of Electromagnetic waves. Different types of Electromagnetic waves , their wavelength , their production and Detection 27 Minutes
02 some important problems on Displacement current and Electromagnetic waves 20 Minutes



Lecture# Description Duration
01 communication system  , modes of communications ,Transducer and Transmitter , signal , Noise , Receiver , Attenuation , Amplification , Range , Band width , Modulation , Demodulation 27 Minutes
02 Band widths of signal , analog signal and digital signal , Band widths of transmission medium , Line communication , Radio communication , Optical communication , Types of wave propagation , Ground wave propagation , sky wave propagation , space wave propagation. Height of Tower and maximum distance covered by transmission 39 Minutes
03 modulation and its necessity ,minimum length of antenna , types of modulation.Amplitude modulation ,side band frequencies , modulation index , disadvantages of amplitude modulation 26 Minutes
04 Frequency modulation ,frequency deviation , carrier swing , modulation index , frequency spectrum , deviation ratio.percent modulation,  Pulse modulation ,pulse amplitude modulation (PAM) , pulse width modulation (PWM) , pulse position modulation (PPM),Demodulation , important problems 31 Minutes


Optical Instruments

Lecture# Description Duration
01 Human eye, near point, far point, least distance of distinct vision, Eye defects, Near sightedness (myopia) and its remedy, far sightedness (Hypermetropia) and its remedy. Problems 36 Minutes
02 Magnifying power of optical instruments, simple microscope (magnifying glass), Magnification when image is formed at Least distance of distinct vision and magnification when image is formed at infinity. Compound microscope (magnifying glass) ,magnification when image is formed at Least distance of distinct vision and magnification when image is formed at infinity. 42 Minutes

Telescope, astronomical telescope , its magnification when image is formed at Least distance of distinct vision and magnification when image is formed at infinity. -

Terrestrial telescope , magnification when image is formed at Least distance of distinct vision and magnification when image is formed at infinity.

 Galilean Telescope , magnification when image is formed at Least distance of distinct vision and magnification when image is formed at infinity
37 Minutes


Diffraction,Resolution & Polarization

Lecture# Description Duration
01 Diffraction ,single slit Diffraction, some important points about diffraction, difference between Interference and diffraction 51 Minutes
02 Resolution , Rayleigh criteria for resolution , Resolution by simple microscope , resolution by telescope 33 Minutes
03 Polarization , polarizer , analyzer , plane of polarization , polarization by reflection , angle of polarization ,Brewster’s law 25 Minutes


Magnetic materials

Lecture# Description Duration
01 magnetic materials , paramagnetic ,ferromagnetic , Domain  and Diamagnetic materials,intensity of magnetisation 27 Minutes
02 magnetic intensity , magnetic susceptibility , curies law , permeability of medium , hysteresis loop , retentivity ,coercive force ,hysteresis loop of iron and steel 37 Minutes


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