PG TRB Physics Previous Year Questions with Answer Key - 3
Question: 11
The unit of viscosity is
(A) Jean poiseuille
(B) Pascal
(C) Poise
(D) none of these
Ans: A
Jean poiseuille
Question: 12
Richter scale is used for measuring
(A) Velocity of sound
(B) Intensity of light
(C) Intensity of sound
(D) Amplitude of seismic waves
Ans: D
Amplitude of seismic waves
Question: 13
Thermopile works on the principle of
(A) Thomson effect
(B) Peltier effect
(C) Joule effect
(D) See beck effected
Ans: D
See beck effected
Question: 14
A man is sitting in a boat which is floating in pond. If the man drinks some water from the pond, the level of water in the pond will
(A) Remain stationary
(B) Rise a little
(C) Fall a little
(D) None of these
Ans: A
Remain stationary
Question: 15
Decibel is the unit of physical quantity used for
(A) the intensity of heat
(B) the intensity of sound
(C) the speed of light
(D) the frequency of radio waves
Ans: B
the intensity of sound
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