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Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when

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Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when:
1. The orbit is geosynchronous.
2. The orbit is circular.
3. The orbit lies in the plane of the earth’s equator.
4. The orbit is at an altitude of 22,236 km.

(a)

1, 2 and 3 only

(b)

1, 3 and 4 only

(c)

2 and 4 only

(d)

1, 2, 3 and 4

Answer:

(a)

Core Books/NCERT

Explanation

A geostationary orbit must be geosynchronous, circular, and lie in the plane of the Earth’s equator. The altitude is approximately 35,786 km, not 22,236 km.