# (Syllabus) IIT-JEE 2012 : PHYSICS

## Indian Institutes of Technology

Joint Entrance Examination, IIT-JEE - 2012

## Physics Syllabus

**General:**Units and dimensions, dimensional analysis; least count, significant figures; Methods of measurement and error analysis for physical quantities pertaining to the following experiments: Experiments based on using Vernier calipers and screw gauge (micrometer), Determination of g using simple pendulum, Young’s modulus by Searle’s method, Specific heat of a liquid using calorimeter, focal length of a concave mirror and a convex lens using u-v method, Speed of sound using resonance column, Verification of Ohm’s law using voltmeter and ammeter, and specific resistance of the material of a wire using meter bridge and post office box.

**
Mechanics: **Kinematics in one and two
dimensions (Cartesian coordinates only),
projectiles; Uniform Circular motion; Relative
velocity.

Newton’s laws of motion; Inertial and uniformly accelerated frames of reference; Static and dynamic friction; Kinetic and potential energy; Work and power; Conservation of linear momentum and mechanical energy.

Systems of particles; Centre of mass and its motion; Impulse; Elastic and inelastic collisions.

Law of gravitation; Gravitational potential and field; Acceleration due to gravity; Motion of planets and satellites in circular orbits; Escape velocity.

Rigid body, moment of inertia, parallel and perpendicular axes theorems, moment of inertia of uniform bodies with simple geometrical shapes; Angular momentum; Torque; Conservation of angular momentum; Dynamics of rigid bodies with fixed axis of rotation; Rolling without slipping of rings, cylinders and spheres; Equilibrium of rigid bodies; Collision of point masses with rigid bodies.

Linear and angular simple harmonic motions.

Hooke’s law, Young’s modulus.

Pressure in a fluid; Pascal’s law; Buoyancy; Surface energy and surface tension, capillary rise; Viscosity (Poiseuille’s equation excluded), Stoke’s law; Terminal velocity, Streamline flow, equation of continuity, Bernoulli’s theorem and its applications.

Wave motion (plane waves only), longitudinal and transverse waves, superposition of waves; Progressive and stationary waves; Vibration of strings and air columns;Resonance; Beats; Speed of sound in gases; Doppler effect (in sound).

Thermal physics:
Thermal expansion of solids, liquids and gases;
Calorimetry, latent heat; Heat conduction in one
dimension; Elementary concepts of convection and
radiation; Newton’s law of cooling; Ideal gas laws;
Specific heats (C_{v} and C_{p} for
monoatomic and diatomic gases); Isothermal and
adiabatic processes, bulk modulus of gases;
Equivalence of heat and work; First law of
thermodynamics and its applications (only for ideal
gases); Blackbody radiation: absorptive and
emissive powers; Kirchhoff’s law; Wien’s
displacement law, Stefan’s law.

**
Electricity and magnetism: **Coulomb’s law;
Electric field and potential; Electrical potential
energy of a system of point charges and of
electrical dipoles in a uniform electrostatic field;
Electric field lines; Flux of electric field;
Gauss’s law and its application in simple cases,
such as, to find field due to infinitely long
straight wire, uniformly charged infinite plane
sheet and uniformly charged thin spherical shell.

Capacitance; Parallel plate capacitor with and without dielectrics; Capacitors in series and parallel; Energy stored in a capacitor.

Electric current; Ohm’s law; Series and parallel arrangements of resistances and cells; Kirchhoff’s laws and simple applications; Heating effect of current.

Biot–Savart’s law and Ampere’s law; Magnetic field near a current-carrying straight wire, along the axis of a circular coil and inside a long straight solenoid; Force on a moving charge and on a current-carrying wire in a uniform magnetic field.

Magnetic moment of a current loop; Effect of a uniform magnetic field on a current loop; Moving coil galvanometer, voltmeter, ammeter and their conversions.

Electromagnetic induction: Faraday’s law, Lenz’s law; Self and mutual inductance; RC, LR and LC circuits with D.C. and A.C. sources.

**Optics:
**Rectilinear propagation of light;
Reflection and refraction at plane and spherical
surfaces; Total internal reflection; Deviation and
dispersion of light by a prism; Thin lenses;
Combinations of mirrors and thin lenses;
Magnification.

Wave nature of light: Huygen’s principle, interference limited to Young’s double-slit experiment.

**Modern
physics: **Atomic nucleus; Alpha, beta and
gamma radiations; Law of radioactive decay; Decay
constant; Half-life and mean life; Binding energy
and its calculation; Fission and fusion processes;
Energy calculation in these processes.

Photoelectric effect; Bohr’s theory of hydrogen-like atoms; Characteristic and continuous X-rays, Moseley’s law; de Broglie wavelength of matter waves.