**National Eligibility-cum-Entrance Test - NEET**

**For admission to MBBS courses across the country**

**Physics - Core Syllabus - NEET -UG**

**Based on 11th and 12th CBSE Syllabus**

Physical World and Measurement

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

Kinematics

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.

Laws of Motion

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

motion (vehicle on level circular road, vehicle on banked road).

Work, Energy and Power

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.

Motion of System of Particles and Rigid Body

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.

Gravitation

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.

Properties of Bulk Matter

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.

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.

Thermodynamics

Thermal equilibrium and definition of temperature (zeroth law of

Thermodynamics). Heat, work and internal energy. First law of

thermodynamics. Isothermal and adiabatic processes.

Second law of the thermodynamics: Reversible and irreversible processes. Heat

engines and refrigerators.

Behaviour of Perfect Gas and Kinetic Theory

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.

Oscillations and Waves

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.

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.

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.

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.

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.

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.

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.

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

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.

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 .