Question # 1

The diver spins faster when moment of inertia becomes.

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smaller

Greater

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

A communication satellite is used ot reflect the signal of.

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Microwaves

Radio waves

y rays

x -rays

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

An elevator is moving up with an acceleration equal to 'g' An apparent weight of the body in an elevator is.

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Zero

Equal to real weight

2 mg

3 mg

Artificial gravity can be created in the space ship by

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Revolving around the earth

Spinning around its own axis

Increasing its velocity

Decreasing it svelocity

INTELSAT VI satellite operates at microwave frequencies of.

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2,4,6,10 GHz

4,6,11 and 14 MHz

4,6,11 and 14 GHz

2,4,6 AND 14 GHz

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 acceleration is produced by

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Power

Torque

Pressure

Force

For angular momentum of system to remain constant, external torque should be.

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Small

Large

Zero

None

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

One radian is equal to.

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75.3^o

57.3^o

35.7^o

73.3^o

One revolution is equal to.

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90^o

180^o

360^o

270^o

The value of angular momentum is maximum when 0 is

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90^o

60^o

75^o

45^o

Satellites are the objects that orbit around the

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Moon

Sun

Earth

Star

A body rotating with angular velocity of 2 radian/s and linear velocity is also 2 ms-1, then radius of circle is.

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1 m

0.5 m

4 m

2 m

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Physics Fsc Part 1 Chapter 5 Online Test MCQs With Answers

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