Question # 1

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

Orbital velocity v_o =

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√gR

√RG

gR

gR²

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

Weight of the body when we increase its height from earth's surface.

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Increase

Decrease

Remain constant

None

Weight of the body is__________ to the gravity force between body and earth:

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Less than

Greater than

Equal

Constant

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

42300 km

The value of 'g' is maximum

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At mountains

At plains

At the surface of earth

At sea level

The value of 'g' is greater at:

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Moon

Hills

Sea leavel

Desert

The speed of satellites in GPS is:

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8.73 kms^-1

3.87 ms^-1

32 ms^-1

3.87 kms^-1

Moon is nearly km away from the Earth:

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3,80,000 km

3800 km

3,80 km

38 km

Newton's law of gravitation resembles with

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1st law of motion

2nd law of motion

3rd law of motion

Law of gravitation

Moon is nearly _________ km away from earth.

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6 x 10²⁴

380000

199.62 km

30000

The gravitational field exist _________ the earth.

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One direction

Upward

All aorund

Downward

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