## SL Arora Physics Class 12 Pdf

SL Arora Physics Class 12 Pdf: Latest Edition SL Arora Class 12 Pdf, Class 12 SL Arora Physics Pdf, 12th class physics book pdf free download, dear students if you are curious about your study then you should read this book for clear the concepts of physics.

## Contents in SL Arora Physics Class 12 Pdf

• Unit 1: Electrostatics
• Unit 2: Current Electricity
• Unit 3: Magnetic Effects of Current & Magnetism
• Unit 4: Electromagnetic Induction and Alternating Currents
• Unit 5: Electromagnetic Waves
• Unit 6: Optics
• Unit 7: Dual Nature of Matter and Radiation
• Unit 8: Atoms and Nuclei
• Unit 9: Electronic Devices
• Unit 10: Communication Systems

## Important Questions of Physics

Which of the following equations represents Ohm’s law?
(a) V = IR
(b) F = ma
(c) P = mv
(d) E = mc²

The rate at which an object’s velocity changes with respect to time is known as:
(a) Displacement
(b) Acceleration
(c) Inertia
(d) Momentum

Which of the following phenomena is explained by the photoelectric effect?
(a) Diffraction of light
(b) Interference of light
(c) Reflection of light
(d) Emission of electrons from a metal surface
Answer: (d) Emission of electrons from a metal surface

The principle of conservation of energy is based on:
(a) Newton’s laws of motion
(b) Kepler’s laws of planetary motion
(c) Archimedes’ principle
(d) The law of conservation of mass-energy
Answer: (d) The law of conservation of mass-energy

The SI unit of power is named after:
(a) James Watt
(b) Isaac Newton
(c) Alessandro Volta

Which of the following electromagnetic waves has the highest frequency?
(b) Infrared waves
(c) Ultraviolet waves
(d) X-rays

According to the law of reflection, the angle of incidence is equal to the angle of:
(a) Absorption
(b) Transmission
(c) Refraction
(d) Reflection

The SI unit of electric charge is the:
(a) Volt
(b) Ampere
(c) Coulomb
(d) Ohm

Which of the following quantities is a vector quantity?
(a) Mass
(b) Density
(c) Temperature
(d) Displacement

The phenomenon of light bending when it passes from one medium to another with different refractive indices is called:
(a) Reflection
(b) Refraction
(c) Dispersion
(d) Diffraction  