gs1medium

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

  1. 1.The orbit is geosynchronous.
  2. 2.The orbit is circular.
  3. 3.The orbit lies in the plane of the Earth's equator.
  4. 4.The orbit is at an altitude of 22,236 km.

Select the correct answer using the codes given below:

  1. A.1, 2 and 3 only
  2. B.1, 3 and 4 only
  3. C.2 and 4 Only
  4. D.1, 2, 3 and 4
▶ Answer & Explanation

Correct answer: A. 1, 2 and 3 only

A geostationary orbit is a type of geosynchronous orbit, meaning its orbital period matches the Earth's rotational period. For a geostationary orbit, it must also be circular and lie directly above the Earth's equator. This specific configuration ensures that the satellite appears stationary relative to a fixed point on the ground, which is crucial for communication and broadcasting satellites. The altitude of 22,236 km is indeed characteristic of this orbit.

Source: UPSC gs1 2011

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