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When a satellite in a circular orbit aro...

When a satellite in a circular orbit around the earth enters the atmospheric region, it encounters small air resistance to its motion. Then

A

its kinetic energy increases

B

its kinetic energy decreases

C

its angular momentum about the earth increases

D

its period of revolution around the earth increases

Text Solution

Verified by Experts

The correct Answer is:
A, C
(A) `KE = (GMm)/(2r)uarr`
(C ) Due to air resistance angular momentum will decreas
(D) `T = 2pi sqrt((r^(3))/(GM))` So option (A) and (C ) are correct
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