PHYSICS

CONTENTS CLASS XI SYLLABUS

UNIT I: Physical World and Measurement
Details:-
• Physics: Scope and excitement; nature of physical laws; Physics, technology and
society.
• Need for measurement: Units of measurement; systems of units; SI units,
fundamental and derived units. Length, mass and time measurements; accuracy
and precision of measuring instruments; errors in measurement; significant
figures.
• Dimensions of physical quantities, dimensional analysis and its applications.

UNIT II: Kinematics
Details:-
• Frame of reference, Motion in a straight line; Position-time graph, speed and
velocity. Uniform and non-uniform motion, average speed and instantaneous
velocity. Uniformly accelerated motion, velocity-time and position-time graphs,
for uniformly accelerated motion (graphical treatment).
• Elementary concepts of differentiation and integration for describing motion.
Scalar and vector quantities: Position and displacement vectors, general vectors,
general vectors and notation, equality of vectors, multiplication of vectors by a
real number; addition and subtraction of vectors. Relative velocity.
• Unit vectors. Resolution of a vector in a plane-rectangular components.
• Scalar and Vector products of Vectors. Motion in a plane. Cases of uniform
velocity and uniform acceleration- projectile motion. Uniform circular motion.

UNIT III: Laws of Motion
Details:-
• Intuitive concept of force. Inertia, Newton’s first law of motion; momentum and
Newton’s second law of motion; impulse; Newton’s third law of motion. Law of
conservation of linear momentum and its applications.
• Equilibrium of concurrent forces. Static and Kinetic friction, laws of friction,
rolling friction, lubrication.
• Dynamics of uniform circular motion. Centripetal force, examples of circular
Final Syllabus for NEET-UG
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UNIT IV: Work, Energy and Power
Details:-
• Work done by a constant force and variable force; kinetic energy, work-energy
theorem, power.
• Notion of potential energy, potential energy of a spring, conservative forces;
conservation of mechanical energy (kinetic and potential energies); nonconservative
forces; motion in a vertical circle, elastic and inelastic collisions in
one and two dimensions.

UNIT V: Motion of System of Particles and Rigid Body
Details:-
• Centre of mass of a two-particle system, momentum conservation and centre of
mass motion. Centre of mass of a rigid body; centre of mass of uniform rod.
• Moment of a force,-torque, angular momentum, conservation of angular
momentum with some examples.
• Equilibrium of rigid bodies, rigid body rotation and equation of rotational motion,
comparison of linear and rotational motions; moment of inertia, radius of
gyration. Values of M.I. for simple geometrical objects (no derivation).
Statement of parallel and perpendicular axes theorems and their applications.

UNIT VI: Gravitation
Details:-
• Kepler’s laws of planetary motion. The universal law of gravitation.
Acceleration due to gravity and its variation with altitude and depth.
• Gravitational potential energy; gravitational potential. Escape velocity, orbital
velocity of a satellite. Geostationary satellites.

UNIT VII: Properties of Bulk Matter
Details:-
• Elastic behavior, Stress-strain relationship. Hooke’s law, Young’s modulus, bulk
modulus, shear, modulus of rigidity, poisson’s ratio; elastic energy.
• Viscosity, Stokes’ law, terminal velocity, Reynold’s number, streamline and
turbulent flow. Critical velocity, Bernoulli’s theorem and its applications.
• Surface energy and surface tension, angle of contact, excess of pressure,
application of surface tension ideas to drops, bubbles and capillary rise.
Final Syllabus for NEET-UG
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• Heat, temperature, thermal expansion; thermal expansion of solids, liquids, and
gases. Anomalous expansion. Specific heat capacity: Cp, Cv- calorimetry;
change of state – latent heat.
• Heat transfer- conduction and thermal conductivity, convection and radiation.
Qualitative ideas of Black Body Radiation, Wein’s displacement law, and Green
House effect.
• Newton’s law of cooling and Stefan’s law.

UNIT VIII: Thermodynamics
Details:-
• Thermal equilibrium and definition of temperature (zeroth law of
Thermodynamics). Heat, work and internal energy. First law of
• Second law of the thermodynamics: Reversible and irreversible processes. Heat
engines and refrigerators.

UNIT IX: Behaviour of Perfect Gas and Kinetic Theory
Details:-
• Equation of state of a perfect gas, work done on compressing a gas.
• Kinetic theory of gases: Assumptions, concept of pressure. Kinetic energy and
temperature; degrees of freedom, law of equipartition of energy (statement only)
and application to specific heat capacities of gases; concept of mean free path.

UNIT X: Oscillations and Waves
Details:-
• Periodic motion-period, frequency, displacement as a function of time. Periodic
functions. Simple harmonic motion(SHM) and its equation; phase; oscillations of
a spring-restoring force and force constant; energy in SHM –Kinetic and potential
energies; simple pendulum-derivation of expression for its time period; free,
forced and damped oscillations (qualitative ideas only), resonance.
• Wave motion. Longitudinal and transverse waves, speed of wave motion.
Displacement relation for a progressive wave. Principle of superposition of
waves, reflection of waves, standing waves in strings and organ pipes,
fundamental mode and harmonics. Beats. Doppler effect