# IIT Suggested Syllabus: Physics

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## Physics

- Physics General: Units and dimensions, dimensional analysis; least count, significant figures; Methods of measurement and error analysis for physical quantities pertaining to the experiments stated as follows: 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 particular resistance of the material of a wire using meter bridge and post office box.
- Mechanics: Kinematics in one and two dimensions i.e.. Cartesian coordinates only, projectiles; Circular motion (uniform and non-uniform); 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.
- 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 (Poiseiulle'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 (Cv and Cp for monatomic 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).
- Black body 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 & 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 & 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 law and Ampere's law, magnetic field near a current carrying straight wire, with 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 dc and ac 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 the matter wave.