Question # 1

Magnetic force is an example of :

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Action at a distance

Force

Torque

Nil

The weight of a body is 100 N its weight in deep space is :

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100 N

50 N

25 N

0 N

GPS consists of __________ earth satellites.

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30

2

7

24

Gravitational force is a:

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Electric force

Magnetic force

Reactional force

Electromotive force.

The altitude of geostationary orbits in which communication satellites are launched above the surface of the Earth is

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850 km

1000 km

6400 km

42,300 km

Value of 'g' on surface of moon is:

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1.62 ms^-2

3.7 ms^-2

9.2 ms^-2

10 ms^-2

The gravitational field exist _________ the earth.

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One direction

Upward

All aorund

Downward

the value of gravitational field strength near the earth is ________ Nkg^-1.

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1.62

100

10

160

The value of gravitational constant is SI unit is

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0.673 x 10-10

6.673 x 10-11

4.32 x 10-9

5.32 x 10-11

The value of G is _________ every where:

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Same

Varying

Changing

1.62

The earth attracts us due to its __________ mass:

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Little

Zero

Small

Large

Speed of the satellites of GPS around earth is:

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3.87 ms^-1

387 kms^-1

3.87 kms^-1

38.7 kms^-1

S.I unit of gravitational field strength is:

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Nkg

Nkg^-1

Nkg^-2

Nkg^-3

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