Top 1000+ Solved Physics MCQ Questions Answer
Q. Which of the following have the same unit?
a. Work and power
b. Torque and moment of inertia
c. Work and torque
d. Torque and angular momentum
Q. Why is weightlessness experienced while orbiting the earth in space ships?
a. Inertia
b. Acceleration
c. Zero gravity
d. None of these
Q. Where is a transistor most likely to be found?
a. Wrist watch
b. Fuse
c. Hearing aid
d. Fluorescent lamp
Q. An object is in static equilibrium when it is .
a. at rest
b. moving in a circular path
c. moving with uniform velocity
d. accelerating at high speed
Q. Equal volumes of different gases at any definite temperature and pressure have-
a. Equal weights
b. equal masses
c. equal density
d. equal no. of molecules
Q. Which law states, "The rate of loss of heat by a body is directly proportional to the difference in temperature between the body and the surroundings"?
a. Doppler's Effect
b. Newton's law of cooling
c. Kirchhoff's Law
d. Stefan's Law
Q. Which of the following reaction is the main cause of energy radiated from Sun?
a. Nuclear fission
b. Nuclear fusion
c. Chemical reaction
d. Diffusion reaction
Q. Postage Meter was invented by -
a. Fyodor Pirotsky
b. Arthur Pitney
c. Fritz Pfleumer
d. Stephen Perry
Q. A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will -
a. increase
b. decrease
c. remain unaffected
d. have its shape changed
Q. When two semiconductors of p-and n- type are brought in contact, they form p-n junction which acts like a/an –
a. Conductor
b. Oscillator
c. Rectifier
d. Amplifier