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Variation of G Due to the Rotation of Earth

Geostationary...

Question

Geostationary satellite

A

is situated at a great height above the surface of the Earth.

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B

moves in the equatorial plane.

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C

have time period of

24

hours.

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D

have time period of

24

hours and moves in the equatorial plane.

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Solution

The correct option is C have time period of $24$ hours and moves in the equatorial plane.
Geostationary satellite is used for communication purpose.
Thus, geostationary satellites are placed at an altitude of 36,000 kms and moves in the equatorial plane in the same direction as the Earth rotates. Hence, its time period is 24 hours.

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