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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 decreases

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 mometum will decreases
(D) `T=2pisqrt((r^(3))/(GM))`, so option (A) and (C) are correct.
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Knowledge Check

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