Q. 15

Which of the following are true?
A. A polar satellite goes around the earth’s pole in north south direction.

B. A geostationary satellite goes around the earth in east - west direction.

C. A geostationary satellite goes around the earth in west - east direction.

D. A polar satellite goes around the earth in east - west direction.

Answer :

Geostationary satellites are the satellites which revolve in a circular orbit around the earth in the equatorial plane with time period equal to the time period of rotation of earth = 24 hours. Hence the geostationary satellite appears fixed from any point on the earth.


Hence the geostationary satellite revolves with same speed and sense as of earth which is west - east direction.


Another kind of satellites known as polar satellites are low altitude of satellites which go around the poles of the earth in north - south direction. Its time period is 100 minutes.


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