BVU Pune CET Syllabus for Physics

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BVP CET 2021 Physics Syllabus

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Contents of Class XII Syllabus

Unit I : Electrostatics

• Electric charges and their conservation. Coulomb’s law – force between two point charges, forces between multiple charges; superposition principle and continuous charge distribution.
• Electric field, electric field due to a point charge, electric field lines; electric dipole, electric field due to a dipole; torque on a dipole in a uniform electric field.
• Electric flux, statement of Gauss’s theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell ( field inside and outside ).
• Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges : equipotential surfaces, electrical potential energy of a system of two point charges and of electric diploes in an electrostatic field.
• Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric polarization, capacitors and capacitance, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor, Van de Graaff generator.

Unit II : Current Electricity

• Electric current, flow of electric charges in a metallic conductor, drift velocity and mobility, and their relation with electric current; Ohm’s law, electrical resistance, V – I characteristics ( liner and non – linear), electrical energy and power, electrical resistivity and conductivity.
• Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors; temperature dependence of resistance.
• Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel.
• Kirchhoff’s laws and simple applications. Wheatstone bridge, metre bridge.
• Potentiometer – principle and applications to measure potential difference, and for comparing emf of two cells; measurement of internal resistance of a cell.

Unit III : Magnetic Effects of Current and Magnetism

• Concept of magnetic field, Oersted’s experiment. Biot – Savart law and its application to current carrying circular loop.
• Ampere’s law and its applications to infinitely long straight wire, straight and toroidal solenoids. Force on a moving charge in uniform magnetic and electric fields. Cyclotron.
• Force on a current – carrying conductor in a uniform magnetic field. Force between two parallel current – carrying conductors – definition of ampere. Torque experienced by a current loop in a magnetic field; moving coil galvanometer – its current sensitivity and conversion to ammeter and voltmeter.
• Current loop as a magnetic dipole and its magnetic dipole moment. Magnetic dipole moment of a revolving electron. Magnetic field intensity due to a magnetic dipole ( bar magnet ) along its axis and perpendicular to its axis. Torque on a magnetic dipole ( bar magnet ) in a uniform magnetic field; bar magnet as an equivalent solenoid, magnetic field lines; Earth’s magnetic field and magnetic elements.
• Para-, dia- and ferro – magnetic substances, with examples.
• Electromagnetic and factors affecting their strengths. Permanent magnets.

Unit IV : Electromagnetic Induction and Alternating Currents

• Electromagnetic induction; Faraday’s law, induced emf and current; Lenz’s Law, Eddy currents. Self and mutual inductance.
• Alternating currents, peak and rms value of alternating current / voltage; reactance and impedance; LC oscillations ( qualitative treatment only ), LCR series circuit, resonance; power in AC circuits, wattles current.
• AC generator and transformer.

Unit V : Electromagnetic Waves

• Need for displacement current.
• Electromagnetic waves and their characteristics ( qualitative ideas only ). Transverse nature of electromagnetic waves.
• Electromagnetic spectrum ( radio waves, microwaves, infrared, visible, ultraviolet, x – rays, gamma rays ) including elementary facts about their uses.

Unit VI : Optics

• Reflection of light, spherical mirrors, mirror formula. Refraction of light, total internal reflection and its applications optical fibres, 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 the sky and reddish appearance of the sun at sunrise and sunset.
• Optical instruments : Human eye, image formation and accommodation, correction of eye defects ( myopia and hypermetropia ) using lenses.
• Microscopes and astronomical telescopes ( reflecting and refracting ) and their magnifying powers.
• Wave optics : Wavefront and Huygens’ principle, reflection and refraction of plane wave at a plane surface using wavefronts.
• Proof of laws of reflection and refraction using Huygens’ principle.
• Interference, Young’s double hole experiment and expression for fringe width, coherent sources and sustained interference of light.
• Diffraction due to a single slit, width of central maximum.
• Resolving power of microscopes and astronomical telescopes. Polarisation, plane polarized light; Brewster’s law, uses of plane polarized light and Polaroids.

Unit VII : Dual Nature of Matter and Radiation

• Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation – particle nature of light.
• Matter waves – wave nature of particles, de Broglie relation. Davisson – Germer experiment ( experimental details should be omitted; only conclusion should be explained ).

Unit VIII : Atoms and Nuclei

• Alpha – particle scattering experiments; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum. Composition and size of nucleus, atomic masses, isotopes, isobars; isotones.
• Radioactivity – alpha, beta and gamma particles / rays and their properties decay law. Mass – energy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission and fusion.

Unit IX : Electronic Devices

• Energy bands in solids ( qualitative ideas only ), conductors, insulators and semiconductors; semiconductor diode – I – V characteristics in forward and reverse bias, diode as a rectifier; I – V characteristics of LED, photodiode, solar cell, and Zener diode; Zener diode as a voltage regulator. Junction transistor, transistor action, characteristics of a transistor; transistor as an amplifier ( common emitter configuration ) and oscillator. Logic gates ( OR, AND, NOT, NAND and NOR ). Transistor as a switch.