# Most Important physics topics to crack NEET

Still indecisive about appearing for NTA NEET even though you cannot stop thinking of the golden opportunity of being on a career path towards the grand jobs? Cannot make up your mind for the exam just because you feel it is tough and you do not know how to prepare for it? If you seriously are thinking about establishing a career in research then it is time for you to make up your mind to aim for this NTA NEET, because YB STUDY is here to help you make your preparation much easier and precise.

With whatever time you have, you must gather all your efforts and energy and put them in the right direction to get satisfactory results. Here we are going to provide you with a Preparation Plan for NEET exam to accomplish your goal. Topics Like Details about the exam, NEET exam pattern, Important topics to study for NEET exam, Top most important topics / chapter are discussed below.

## Class 11 physics syllabus

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**Unit 1 – Physical world and measurement ( 2%)** :

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.

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**Unit 2 – Kinematics ( 3%)** :

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.

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**Unit 3 – Laws of Motion ( 3%) **:

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)

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**Unit 4 – Work, Energy and Power ( 4%)** :

Word 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); non-conservative forces; motion in a vertical circle, elastic and inelastic collisions in one and two dimensions.

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**Unit 5 – Motion of systems of particles and rigid body ( 5%)** :

Centre of mass of a two-particle system, momentum conservation and centre of mass motion. Centre of mass of a rigid; Centre of mass of uniform rod,

Momentum of a force – torque, angular momentum, conservation of angular momentum with some examples,

Equillibrium of rigid bodies, rigid body rotation and equation of rotational motion, comparision 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

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Unit 6 – Gravitation (2%) **:**

Kepler’s law 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

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**Unit 7 – Properties of Bulk matter (3%) :**

Elastic behaviour, stress-strain relationship. Hooke’s law, Young’s modulus, bulk modulus, shear, modulus of rigidity, poisson’s ratio; elastic energy

Viscosity, Stoke’s law, terminal velocity, Reynold’s number, streamline and turbulent flow. Critical velocity, Bernoulli’s theorem.

Heat, temperature, thermal expansion; thermal expansion of solids, liquids and gases. Anomalous expansion. Specific heat of 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 8 – Thermodynamics (9%) :**

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**Unit 9 – Behaviour of perfect gas and kinetic theory (3%) **:

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 10 – 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 and 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.

## Class 12 Physics syllabus :

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**Unit 1 – Electrostatics (9%) **:

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,

Electric flux, statement of Gauss’s theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet,

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 dipoles in an electrostatic field Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric polarization, capacitors and capacitance, combination of

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**Unit 2 – Current electricity (8%) :**

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 (linear 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, Kirchoff’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

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**Unit 3 – Magnetic effects of current and magnetism (5%) **:

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, Para -, dia-and ferro-magnetic substances, with examples.

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**Unit 4 – Electromagnetic induction and alternating current (8%)** :

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

**Unit 5 – Electromagnetic waves (5%) :**Need for displacement current

Electromagnetic waves and their characteristics (qualitative ideas only). Transverse nature of electromagnetic waves

Electromagnetic spectrum (radio waves, micro waves, infrared, visible, ultraviolet, x-rays, gamma rays) including elementary facts about their uses.

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**Unit 6 – Optics (3%)** :

Reflection of light, spherical mirrors, mirror formula. Refraction of light, total internal reflection and its applications optical fibers, 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 color 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 hyper myopia) using lenses

Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.

Wave optics: Wavefront and Huygen’s principle, reflection and refraction of plane wave at a plane surface using wavefronts

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**Unit 7 – Dual nature of matter and radiation (6%)** :

Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation – particle nature of light

Matter waves – wave nature of particles, deBrogile relation. Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained)

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**Unit 8 – Atoms and nuclei (3%) :**

Alpha – particle scattering experiments; Rutherford’s model fo 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, nuclear fission and fusion

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**Unit 9 – Electronic devices (9%) **:

There is a lot of similarity between 11th physics & 12th physics section. Both involve studying too many concepts and equations and problem but in examination, the question that you get are not easy to solve. To know how to approach these questions, the best way is to practice questions at home throughout your preparation time. In the time table make sure you have kept time for solving to many questions. Even if you take up 15-30 questions every day from books, you will be ready for the exam as well as be confident about NEET.

NEET is an examination for National level. Besides the clear concepts, it also demands in-depth knowledge of the subject. For that, you should refer to good books. This will help you with clearing concepts as well as will make you more knowledgeable. Also, you can refer to YB study material which covers the whole syllabus with interactive design and allows you to practice questions.