Question # 1

The formula of centripetal acceleration is

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The value of of 'g' at the centre of the earth is

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Infinite

2 g

3 g

zero

When a body is whirled in a horizontal circle by means of string, the centripetal force is supplied by

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Mass of body

Velocity of a body

Tension in the string

Centripetal acceleration

The work done by centripetal force is

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(-)ve

(+)ve

Maximum

Zero

The value of angular momentum is maximum when 0 is

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90^o

60^o

75^o

45^o

When a body is moving along a circular path, then such a motion is called

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Vibratory motion

Rotatory motion

Linear motion

None of these

As we go from pole to equator of earth, the value of 'g'

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Increase

Decrease

Remain constant

Zero

All point of the rigid body rotating about a fixed axis do not have same.

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Angular acceleration

Angular speed

speed

Angular displacement

The weight of an object an elevator moving down with an acceleration of 9.8 m/s2 will becomes

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Half

Double

Unchanged

Zero

Time period of geostationary satellite of radius 'R' is

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1 hour

48 min

1 day

1 month

In case of planets centripetal force is provided by

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Coulomb's force

Electrostatic force

Gravitational force

Magnetic force

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Physics English Medium Fsc Part 1 Chapter 5 Online MCQs Test MCQs With Answers

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