Top 1000+ Solved Physics MCQ Questions Answer
Q. If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states that?
a. Newton’s first law
b. Newton’s Second Law
c. Newton’s Third Law
d. Principle of conservation of linear momentum
Q. A body moving in a circular path with a constant speed has a –
a. constant velocity
b. constant acceleration
c. constant kinetic energy
d. constant displacement
Q. The large collection of stars, dust and gas held together by gravitational attraction between components is known as –
a. Cluster
b. Atmosphere
c. Galaxy
d. Sun Family
Q. The working of a rocket is based on the principle of:
a. Conservation of momentum
b. Conservation of mass
c. Conservation of energy
d. Conservation of angular momentum
Q. Light waves projected on oil surface show seven colours due to the phenomenon of
a. polarisation
b. refraction
c. reflection
d. interference
Q. Which of the following has the maximum specific heat capacity?
a. water
b. piece of iron
c. piece of gold
d. chloroform
Q. Which variety of glass is heat resistant?
a. Hard glass
b. Flint glass
c. Pyrex glass
d. Bottle glas
Q. The waves used in sonography are –
a. Micro waves
b. Infra-red waves
c. Sound waves
d. Ultrasonic waves
Q. Which of the following is a scalar quantity?
a. Velocity
b. Force
c. Angular momentum
d. Electrostatic potential
Q. The sky appears blue due to –
a. Rayleigh scattering
b. Mie scattering
c. Back scattering
d. None of the above
Q. The device used to convert solar energy into electricity is –
a. Photovoltaic cell
b. Daniell cell
c. Electrochemical cell
d. Galvanic cell
Q. The absorption of ink by blotting paper involves -
a. capillary action phenomenon
b. viscosity of ink
c. siphon action
d. diffusion of ink through the blotting
Q. A fuse wire is made of:
a. an alloy of tin and copper
b. an alloy of tin and lead
c. an alloy of tin and aluminium
d. an alloy of nickel and chromium
Q. Which instrument is used to measure depth of ocean?
a. Galvanometer
b. Fluxmeter
c. Endoscope
d. Fathometer
Q. When a running car stops suddenly, the passengers tends to lean forward because of:
a. centrifugal force
b. inertia of rest
c. inertia of motion
d. gravitational force