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## JEE (MAIN) Unit-Wise Tests for Physics

This is an extraordinary book, for solving questions of JEE Main Level, I would highly recommend you to get this one, as it would help you to know every possible pattern that can be asked in Physics of JEE Main Level.

**The syllabus contains two Section-A and B,**

**Section-A**pertains to the Theory Part having 80% weightage, while

**Section-B**contains Practical Component (Experimental Skills) having 20% weightage.

### Section -A

#### Unit-1: Physics and Measurement

Physics, technology and society, S.I. units, Fundamental and derived units. Least count, accuracy and precision of measuring instruments, Errors in measurement, Dimensions of Physical quantities, dimensional analysis and its applications.

#### Unit -2: Kinematics

Frame of reference. Motion in a straight line; Position time graph, speed and velocity, Uniform and non-uniform motion, average speed and instantneous velocity Uniformly accelerated motion, velocity-time, position-time graphs, relations for uniformly acceleated motion. Scalars and Vector, Vector addition and Subtraction, Zero Vector, Scalar and Vector products, Unit vector, Resolution of a Vector, Relative Velocity, Motion in a plane, Projectile Motion, Uniform Circular Motion.

#### Unit -3: Laws of Motion

Force and Inertia, Newton's First Law of motion; Momentum, 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, Law of friction, rolling friction. Dynamics of uniform circular motion : Centripetal force and its applications.

#### Unit -4: Work, Energy and Power

Work done by a constant force and a variable force; Kinetic and potential energies, work energy theorem, power. Potential energy of a spring, conservation of mechanical energy, conservative and non-conservative forces: Elastic and inelastic collisions in one and two dimensions.

#### Unit -5: Rotational Motion

Centre of mass of a two-particle system, Centre of mass of a rigid body; Basic concepts of rotational motion: moment of a force, torque, angular momentum, conservation of angular momentum and its applications: moment of inertia, radius of gyration. Values of moments of inertia for simple geometrical Parallel objects. parallel and perpendicular axes theorems and their applications. Rigid body rotation, equation of rotational motion.

#### Unit 6: Gravitation

The universal law of gravitation. Acceleration due to gravity and its variation with altitude and depth. Kepler'slaws of planetary motion, gravitational potential energy; gravitational potential, Escape velocity. Orbital velocity of a satellite. Geo-stationary satellites.

#### Units -7: Properties of solids and liquids

Elastic behavior, Stress-strain relationship, Hooke's Law, Young's modulus, bulk modulus, modulus of rigidity. Pressure due to a fluid column; Pascal's law and its applications. Viscosity, Stokes' law, terminal velocity, streamline and turbulent flow, Reynolds number. Bernoulli's principle and its applications. Surface energy and surface tension, angle of contact, application of surface tension drops, bubbles and capillary rise. Heat temperature, thermal expansion; specific heat capacity, calorimetry; change of state, latent heat. Heats transfer conduction, convection and radiation, Newton's law of cooling.

#### Unit -8: Thermodynamics

Thermal equilibrium, zeroth law of thermodynamics, concept of temperature. Heat, work and internal energy. First law of thermodynamics. Second law of thermodynamics; reversible and inreversible processes. Carnot engine and its efficiency.

#### Unit -9: Kinetic Theory of gases

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: rms speed of gas molecules; Degrees of freedom, Law of equipartition of energy, applications to specific heat capacities of gases; Mean free path, Avogadro's number.

#### Unit -10: Oscillations and Waves

Periodic motion-period, frequency, displacement as a function of time, Periodic functions, Simple harmonic motion (S.H.M.) and its equation; phase; oscillations of a spring restoring force and force constant; energy in S.H.M.; kinetic and potential energies; Simple pendulum-derivation of expression for its time period; Free, forced and damped oscillations, resonance. Wave motion, Longitudinal and transverse waves, speed of a wave. Displacement relation for a progressive wave, Principle of superposition of waves, reflection of waves, Standing waves in string and organ pipes, fundamental mode and harmonics, Beats, Doppler effect in sound.

#### Unit -11 Electrostatics

Electric charges, Conservation of charge, Coulomb's law-forces between two point charges, forces between multiple charges; superposition principle and continuous charge distribution.

Electric field; Electric field due to point charge, Electric field lines, Electric dipole, Electric field due to a dipole, Torque on a dipole in a uniformly electric field.

Electric flux, Gauss's law and its applications to find field due to infinitely long uniformly charged straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical sheell. Electric potential and its calculation for a point charge, electric dipole and system of charges; Equipotential surface, Electrical potential

energy of a system of two point charges in an electrostatic field. Conductors and insulators, Dielectrics and electric polariztion, capacitor, 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 capacitor.

#### Unit -12: Current Electricity

Electric current, Drift velocity, Ohm's law, Electrical resistance, Resistances of different materials. V-I characteriics of Ohmic and nonohmic conductors, Electrical energy and power, Electrical resistivity. Colour code for resistors; Series and parallel combinations of resistors; Temperature dependence of resistance. Electric Cell and its Internal resistance, potential difference and emf of a cell, combination of cells in series and in parallel. Kirchhoffs laws and their applications. Wheatstone bridge, Metre bridge. Potentiometer - principle and its applications.

#### Unit-13: Magnetic Effect of Current and Magnetism

Biot - Savart law and its application to current carrying circular loop. Ampere's law and its applications to infinitely long current carrying straight wire and solenoid. Force on a moving charge in uniform magnetic and electric field, 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 uniform 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. Bar magnet as an equivalent solenoid, magnetic field lines; Earth's magnetic field and magnetic elements. Para, dia and ferro magnetic substances. Magnetic susceptibility and permeability. Hysteresis, Electromagnetic and permanent magnets.

#### Unit -14: 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; LCR series circuit, resonance; Quality factor, power in AC circuits, wattless current. AC generator and transformer.

#### Unit -15: Electromagnetic waves

Electromagnetic waves and their characteristics, Transverse nature of electromagnetic waves. Electromagnetic spectrum (radio waves, microwaves, infarared, visible, ultraviolet, X-rays, gamma rays). Applications of e.m. waves.

#### Unit -16: Optics

Reflection and refraction of light at plane and spherical surface, mirror formula, Total internal reflection and its applications, Deviation and Dispersion of light by a prism, Lens Formula, Magnification, Power of a Lens, Combination of thin lenses in contact, Microscope and Astronomical Telescope (reflecting and refracting) and their magnifying powers. Wave optics: Wave front and Huygens' principle, Laws of reflection and refraction using Huygen's principle. Interference, Young's double slit 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.

#### Unit -17: Dual Nature of Matter and Radiation

Dual nature of radiation. Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation; particle nature of light. Matter waves-wave nature of particle, de Broglie relation. Davisson-Germer experiment.

#### Unit -18: Atoms and Nuclei

Alpha-particle scattering experiment; Rutherford's model of atom; Bohr model, energy levels, hydrogen spectrum. Composition and size of nucleus, atomic masses, isotopes, isobars; isotones. Radioactivity-alpha. but a and gamma particles/rays and their properties; radioactive decay law. Mass-energy relation, mass defect: binding energy per nucleon and its variation with mass number, nuclear fission and fusion.

#### Unit -19: Electronic Devices

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; as a voltage regulator, Junction 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.

#### Unit -20: Communications systems

Propagation of electromagnetic waves in the atmosphere; Sky and space wave propagation, Need for modulation, Amplitude and Frequency Modulation, Bandwidth of signals, Bandwidth of Transmission medium, Basic Elements of a Communication System (Block Diagram only).

### Section -B

#### Unit -21: Experimental Skills

**Familiarity with the basic approach and observations of the experiments and activities:**

1. Vernier callipers-its use to measure internal and external diameter and depth of a vessel.

2. Screw gauge-its use to determine thickness / diameter of thin sheet/wire.

3. Simple Pendulum-dissipation of energy by plotting a graph between square of amplitude and time.

4. Metre Scale-mass of a given object by principle of moments.

5. Young's modulus of elasticity of the material of a metallic wire.

6. Surface tension of water by capillary rise and effect of detergents.

7. Co-efficient of Viscosity of a given viscous liquid by measuring terminal velocity of a given spherical body.

8. Plotting a cooling curve for the relationship between the temperature of a hot body and time.

9. Speed of sound in air at room temperature using a resonance tube.

10. Specific heat capacity of a given (i) solid and (ii) liquid by method of mixtures.

11. Resistivity of the material of a given wire using metre bridge.

12. Resistance of a given wire using Ohm's law,

13. Potentiometer -

(i) Comparison of emf of two primary cells.

(ii) Determination of internal resistance of a cell.

14. Resistance and figure of merit of a galvanometer by half deflection method.

15. Focal length of:

(i) Convex mirror

(ii) Concave mirror and

(iii) Convex lens using parallax method

16. Plot of angle of deviation vs angle of incidence for a triangular prism.

17. Refractive index of a glass slab using a traveling microscope.

18. Characteristic curves of a p-n junction diode in forward and reverse bias.

19. Characteristic curves of a Zener diode and finding reverse break down voltage.

20. Characteristic curves of a transistor and finding current gain and voltage gain.

21. Identification of Diode, LED, Transistor, IC, Resistor, Capacitor from mixed collection of such items.

22. Using millimeter to:

(i) Identify base of a transistor

(ii) Distinguish between npn and pnp type transistor.

(iii) See the unidirectional flow of current in case of a diode and an LED.

(iv) Check the corretness or otherwise of a given electronic component (diode, transistor or IC).

CP Publication JEE(Main) Unit Wise Practice Tests Physics
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31/07/2023

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