Question # 1

The radius R of the earth is:

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6 x 10¹⁸m

6.4 x 10⁶m

6.4 x 10⁸m

6.4 x 10¹²m

Moon complete it's one revolution around earth is days:

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22

23

27.3

25

The unit of gravitational constnat is:

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Nm² kg

Nm²kg^-2

Nm²kg^-1

N - m²

The orbital velocity of a satellite revolving at height 'h' above the surface of Earth is given by

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S.I unit of G is:

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Nm^-2 kg²

Nm^-2Kg^-2

Nm²kg^-2

Nm²kg^-3

Near the surface of Earth, the gravitational field strength is

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10 Nkg-1

Zero

100 Nkg-1

1000 Nkg-1

Near the earth surface the gravitational field strength is:

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1 N kg^-1

10 N kg^-1

100 N kg^-1

101 N kg^-1

Gravitational constant depends on:

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Medium

Force

Weight

It does not depend son anything

The value of g on moon's surface is 1.6 ms^-2. What will be the weight of a a 100 kg body on the surface of the moon?

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100 N

160 N

1000 N

1600 N

Moon is our satellite:

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Artificial

Permanent

Natural

Communication

Value of g on mercury is ___________ ms^-2.

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25.94

3.7

8.87

1.62

________ is the height of an object or place above sea level.

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Altitude

Depth

Sun

Moon

The mass of a body is 1 kg, its mass in deep space is :

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1 Kg

0.5 Kg

0.25 kg

0

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