Question

Assertion : The time period of geostationary satellite is 24 hours.

Reason : Geostationary satellite must have same time period as time taken by the earth to complete one revolution about its axis.

• A. If both assertion and reasons are correct and reason is correct explanation of assertion.
• B. If both assertion and reasons are correct and reason is not correct explanation of assertion.
• C. If assertion is correct but reason is incorrect.
• D. If reason is correct but assertion is incorrect.

Answer 1

The correct option is A

If both assertion and reasons are correct and reason is correct explanation of assertion.

1. Geostationary Satellite :- The satellite which has to be always focus on a particular place of the earth, known as geostationary satellite.
2. As the geostationary satellite is established in an orbit in the plane of the equator at a particular place, so it move in the same sense as the earth.
3. Hence, its time period of revolution is equal to $24$ hours, which is equal to time period of revolution of earth about its axis.

Hence, option (a) is correct.