Physics MCQs

Page No. 27

Terminal velocity of the body is directly proportional to the_______________?


aThe radius of the body


bThe diameter of the body


cSize of the body


dSquare of the diameter of the body



Terminal velocity is given by equation_______________?


aVt = gr2ρ


b Vt = 2gr2/9ρ


cVt = gr2/9ρ


dVt = 9gr2/2ρ


View Answer Vt = 2gr2/9ρ

When the body moves with terminal velocity the acceleration in the body become_____________?


a0


bMaximum


cVariable


d Infinite


View Answer 0

Terminal velocity is_____________?


aUniform


bMaximum


cUniform and maximum


dNeither uniform nor maximum


View Answer Uniform and maximum

The dimensions of the coefficient of viscosity are_____________?


a ML-1T-1


bM2L1T1


cML1T-1


dM2L-1T-1


View Answer ML-1T-1

Coefficient of viscosity of honey is greater than______________?


aMilk


b Water


cCharcoal


dWater


View Answer Water

When a body is moving along a circular path it covers a certain angle in a given interval of time. Such type of motion is__________________?


aVibratory motion


bLinear motion


cRotatory motion


dAngular motion


View Answer Angular motion

How many days would be in a year if the distance between the earth and the sun were reduced to half of its present value (assuming circular orbit) ?


a365 days


b 730 days


c329 days


d 129 days


View Answer 129 days

If a body of mass 10 kg is allowed to fall freely, its weight becomes______________?


a0


b89N


c9.8 N


d10N


View Answer 0

A body of 2 kg is suspended from the ceiling of an elevator moving up with an acceleration g. Its apparent weight in the elevator will be______________?


a9.8 N


b19.6 N


c129.4 N


d39.2 N


View Answer 39.2 N

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