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

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 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

Time period of geostationary satellite of radius 'R' is

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1 hour

48 min

1 day

1 month

Time rate of change of angular displacement is called

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Linear velocity

Angular velocity

Rotational velocity

Vibrational velocity

The direction of angular velocity of along the

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Tangent at that point

Axis of rotation

Radius towards the centre

Radius away from the centre

A body starting from rest attains angular acceleration of 5 rad s-2 in 2 second final angular velocity will be.

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10 rad s-1

7 rad s-1

3 rad s-1

2 rad s-1

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

Which quantity of the following is dimensionless.

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Angular velocity

Centripetal force

Angular acceleration

Angular displacement

The value of angular momentum is maximum when 0 is

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90^o

60^o

75^o

45^o

International Telecommunication satellite

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4,6,8 and 10 Hz

4,6,11 and 14 GHz

4,6,8 and 12 Hz

4,8,11 and 16 GHz

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