Question # 1

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

2 radian = ____

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2 m

4 m

57.3 m

114.6 m

Moment of inertia is measure din

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Kg m2

Kg m-2

Rad s-1

Joule second

The rate of change of angular velocity is called

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Angular velocity

Angular acceleration

Angular displacement

Angular speed

100 radians are equal to.

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57.3^o

75.3^o

573^o

5730^o

If a body is moving in the counter clockwise direction the direction of angular velocity will be

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Toward the centre

Away from the centre

along the linear velocity

Perpendicular to both radius and linear velocity

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

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 relation between linear and angular velocity is

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Angular velocity determines, How fast or, How slow a body is

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Accelerating

Vibrating

Rotating

Oscillating

One revolution is equal to.

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90^o

180^o

360^o

270^o

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

Time rate of change of angular displacement is called

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Linear velocity

Angular velocity

Rotational velocity

Vibrational velocity

A man of 1 kg is freefalling. The force of gravity is

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1 N

9.8 N

0.5 N

Zero

The value of a time period of allow flying satellite is

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1 year

84 minutes

28 hours

1 day

Angular acceleration is produced by

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Power

Torque

Pressure

Force

The centripetal force is always directed

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Away from the centre along the radius

Along the direction of motion

Opposite to the motion of the body

Towards the centre along the radius

The relation between the speed and hoop can be written as

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2

4

1/2

1/4

The angle between circumference of a circle and center is

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How many orbiting satellites from the Global positing system.

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3

12

24

22

Angular displacement is

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Scalar quantity

Vector quantity

Basic quantity

None of these

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