Question # 1

Height of geo stationary orbit of the satellite above the earth is.

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300 km

250 km

400 km

None of these

Angular momentum has the same unit as

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Impulse x distance

Power x time

Linear x time

work x frequency

A man of mass 5 kg is falling freely, the fore acting on it will be

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5 N

9.8 N

19.6 N

49 N

The time rate of change of angular displacements called.

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Linear velocity

Linear speed

Angular velocity

Angular speed

the angular version of F= ma is

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L = 1w

pi = 1a

l = pi a

f = mv/t

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

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

Einstein's theory gives us the physical picture of how the

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Body moves

Gravity works

Moment of inertia produced

Weightlessness creates

Which of the following is not directed along the fixed axis of rotation.

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Angular displacement

Angular momentum

Centripetal acceleration

Angular acceleration

Time period of geostationary satellite of radius 'R' is

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1 hour

48 min

1 day

1 month

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In case of planets centripetal force is provided by

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Coulomb's force

Electrostatic force

Gravitational force

Magnetic force

The amount of inertia of 10 kg hoop about the axis of rotation perpendicular to its plane having radius 5 m is

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50 kgm2

100 K gm2

150 K gm2

250 K gm2

Angular displacement is

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Scalar quantity

Vector quantity

Basic quantity

None of these

Which one of the following force cannot do any work on the particle on which it acts.

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Fractional force

Gravitational force

Electrostatic force

Centripetal force

If the are of a circle equals its radius, then the angle subtended at the center will be

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1 degree

One rotation

One radian

Half rotation

Apparent weight of a man is in upward accelerated lift will

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Increases

Decreases

Remain same

Increases then decrees

Close orbiting satellites orbit the earth at a height of about

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400 km

4000 km

400 m

400 cm

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Physics Fsc Part 1 Chapter 5 Online Test MCQs With Answers

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