Physics MCQs

Page No. 27

Terminal velocity of the body is directly proportional to the_______________?


aThe radius of the body

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bThe diameter of the body

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cSize of the body

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dSquare of the diameter of the body

✓



Terminal velocity is given by equation_______________?


aVt = gr2ρ

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b Vt = 2gr2/9ρ

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cVt = gr2/9ρ

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dVt = 9gr2/2ρ

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View Answer Vt = 2gr2/9ρ

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


a0

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bMaximum

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cVariable

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d Infinite

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View Answer 0

Terminal velocity is_____________?


aUniform

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bMaximum

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cUniform and maximum

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dNeither uniform nor maximum

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View Answer Uniform and maximum

The dimensions of the coefficient of viscosity are_____________?


a ML-1T-1

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bM2L1T1

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cML1T-1

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dM2L-1T-1

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View Answer ML-1T-1

Coefficient of viscosity of honey is greater than______________?


aMilk

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b Water

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cCharcoal

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dWater

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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

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bLinear motion

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cRotatory motion

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dAngular motion

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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

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b 730 days

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c329 days

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d 129 days

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View Answer 129 days

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


a0

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b89N

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c9.8 N

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d10N

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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

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b19.6 N

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c129.4 N

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d39.2 N

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View Answer 39.2 N

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