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An artificial satellite moving in a circ...

An artificial satellite moving in a circular orbit around the earth with a speed equal to half the magnitude of escape velocity from the earth's surface, will be at a height_______________ km.

A

`6400` km

B

12800 km

C

3200 km

D

1600 km

Text Solution

Verified by Experts

The correct Answer is:
A
`v=(v_e)/2=1/2sqrt((2GM)/(4R))`
`rArrR+h=2RrArrh=R`
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