Question # 1

Angular momentum has the same unit as

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Impulse x distance

Power x time

Linear x time

work x frequency

The minimum number of correctly positioned communication satellites to cover whole populated earth is.

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2

3

100

200

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

The SI unit of angular momentum is

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J.S-2

J.S-1

J.S

J.m

A 60 kg man in an elevator is moving upward with an acceleration of 9.8 ms-2. The apparent weight of the man.

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Increase

Decreases

Remain constant

Becomes zero

The largest satellite system is managed by

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116 countries

126 countries

136 countries

140 countries

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

The maximum velocity necessary to put a satellite into orbit is

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7.1 kms-1

7.3 kms-1

7.9 kms-1

8,9 kms-1

The equations of angular motion hold only in case when the axis of rotation is

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Moving

Fixed

Both a and b

None of these

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

The motion of a body moving along a circular path is called.

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Translational motion

Angular motion

Vibratory motion

Linear motion

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 orbital angular momentum is associated with the motion of a body along

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Straight path

Circular path

Curved path

Along any path

The SI unit of angular displacement is.

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Degree

Revolution

Radian

Rotation

The formula of centripetal acceleration is

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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 diver spins faster when moment of inertia becomes.

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smaller

Greater

Constant

Zero

The angle between circumference of a circle and center is

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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

If a rocket is accelerating upward with an acceleration of 2 g, an astronaut of weight, mg in the rocket shows apparent weight.

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Zero

Mg

2 mg

3 mg

When a particle is moving along a circular path its projection along the diameter executes

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Linear motion

Vibratory motion

Rotatory motion

SHM

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Physics Fsc Part 1 Chapter 5 Online Test MCQs With Answers

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