"VITEEE 2015 Physics
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VITEEE 2015 Physics
Charges and their conservation; Coulomb’s law-forces between two point electric charges - Forces between
multiple electric charges-superposition principle.
Electric field – electric field due to a point charge, electric field lines; electric dipole, electric field intensity due to
a dipole - behaviour of a dipole in a uniform electric field.
Electric potential - potential difference-electric potential due to a point charge and dipole-equipotential surfaces
– electrical potential energy of a system of two point charges.
Electric flux-Gauss’s theorem and its applications to find field due to (i) infinitely long straight wire (ii) uniformly
charged infinite plane sheet (iii) two parallel sheets and (iv) uniformly charged thin spherical shell (inside and
Electrostatic induction-capacitor and capacitance – dielectric and electric polarisation – parallel plate capacitor
with and without dielectric medium – applications of capacitor – energy stored in a capacitor - Capacitors in
series and in parallel – action of points – Lightning arrester – Van de Graaff generator.
2. Current Electricity
Electric Current – flow of charges in a metallic conductor – drift velocity and mobility and their relation with
Ohm’s law, electrical resistance - V-I characteristics – electrical resistivity and conductivity-classification of
materials in terms of conductivity – Carbon resistors – colour code for carbon resistors - combination of
resistors – series and parallel – temperature dependence of resistance – internal resistance of a cell – potential
difference and emf of a cell - combinations of cells in series and in parallel.
Kirchoff’s law – illustration by simple circuits – Wheatstone’s Bridge and its application for temperature
coefficient of resistance measurement - Metrebridge - special case of Wheatstone bridge - Potentiometer
principle - comparing the emf of two cells.
3. Magnetic Effects of Electric Current and Magnetism
Magnetic effect of electric current – Concept of magnetic field - Oersted’s experiment – Biot-Savart law-Magnetic
field due to an infinitely long current carrying straight wire and circular coil – Tangent galvanometer –
construction and working – Bar magnet as an equivalent solenoid – magnetic field lines.
Ampere’s circuital law and its application.
Force on a moving charge in uniform magnetic field and electic field – cyclotron – Force on current carrying
conductor in a uniform magnetic field – Forces between two parallel current carrying conductors - definition of
Torque experienced by a current loop in a uniform magnetic field - moving coil galvanometer – conversion to
ammeter and voltmeter – current loop as a magnetic dipole and its magnetic dipole moment - Magnetic dipole
moment of a revolving electron.
Para, dia and ferro-magnetic substances with examples – Electromagnets – Permanent Magnets
4. Electromagnetic Induction and Alternating Current
Electromagnetic induction - Faraday’s law - induced emf and current - Lenz’s law.
Self induction - Mutual induction - self inductance of a long solenoid - mutual inductance of two long solenoids.
Methods of inducing emf - (i) by changing magnetic induction (ii) by changing area enclosed by the coil and
(iii) by changing the orientation of the coil (quantitative treatment).
AC generator - commercial generator. (Single phase, three phase).
Eddy current - applications - transformer - long distance transmission.
Alternating current - measurement of AC-AC circuit with resistance - AC circuit with inductor - AC circuit with
capacitor - LCR series circuit - Resonance and Q - factor - power in AC circuits.
Reflection of light, spherical mirrors, mirror formula. Refraction of light, total internal reflection and its
applications, optical fibers, refraction at spherical surfaces, lenses, thin lens formula, lens maker’s formula.
Magnification, power of a lens, combination of thin lenses in contact, combination of a lens and a mirror.
Refraction and dispersion of light through a prism.
Scattering of light-blue colour of sky and reddish appearances of the sun at sunrise and sunset.
6. Electromagnetic Waves and Wave Optics
Electromagnetic waves and their characteristics - Electromagnetic spectrum-radio, microwaves, infra-red,
visible, ultra-violet, X rays, gamma rays.
Wavefront and Huygens’s principle - Reflection, total internal reflection and refraction of plane wave at a plane
surface using wavefronts.
Interference - Young’s double slit experiment and expression for fringe width - coherent source - interference of
light-Formation of colours in thin films - analytical treatment - Newton’s rings.
Diffraction - differences between interference and diffraction of light- diffraction grating.
Polarisation of light waves - polarisation by reflection - Brewster’s law - double refraction - nicol prism - uses of
plane polarised light and Polaroids - rotatory polarisation - polarimeter.
7. Atomic and Nuclear Physics
Atomic structure – discovery of the electron – specific charge (Thomson’s method) and charge of the electron
(Millikan’s oil drop method) – alpha scattering – Rutherford’s atom model.
Bohr’s model – energy quantization – energy and wave number expressions – Hydrogen spectrum – energy level
diagrams – sodium and mercury spectra – excitation and ionization potentials.
Nuclear properties - nuclear radii, masses, binding energy, density, charge - isotopes, isobars and isotones -
nuclear mass defect - binding energy - stability of nuclei - Bainbridge mass spectrometer.
Nature of nuclear forces - Neutron - discovery - properties - artificial transmutation - particle accelerator.
Radioactivity - alpha, beta and gamma radiations and their properties-? -decay, ß -decay and ? -decay -
Radioactive decay law - half life - mean life - artificial radioactivity - radio isotopes - effects and uses - Geiger -
Radio carbon dating - biological radiation hazards.
Nuclear fission - chain reaction - atom bomb - nuclear reactor - nuclear fusion - Hydrogen bomb - cosmic rays -
8. Dual Nature of Radiation and Matter
Photoelectric effect - Light waves and photons - Einstein’s photoelectric equation - laws of photoelectric emission
- particle nature of light - photo cells and their applications.
Matter waves - wave nature of particles – de Broglie relation – de Broglie wavelength of an electron –Davisson
Germer experiment – electron microscope
9. Semiconductor Devices and their Applications
Semiconductor theory - energy band in solids (Qualitative ideas only) - difference between metals, insulators
and semiconductors based on band theory - semiconductor doping - Intrinsic and Extrinsic semiconductors.
Formation of P-N Junction - Barrier potential and depletion layer-P-N Junction diode - Forward and reverse bias
characteristics - diode as a rectifier - Zener diode-Zener diode as a voltage regulator - LED - seven segment
display - LCD.
Junction transistors - characteristics - transistor as a switch - transistor as an amplifier - transistor as an
Logic gates - NOT, OR, AND, EXOR using discrete components - NAND and NOR gates as universal gates -Laws
and theorems of Boolean algebra
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