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Question

What will be velocity of a satellite revolving around the earth at a height h above surface of earth if radius of earth is R.
  1. R2gR+h
  2. RR+hg
  3. Rg(R+h)2
  4. RgR+h

A
RR+hg
B
R2gR+h
C
Rg(R+h)2
D
RgR+h
Solution
Verified by Toppr

Velocity of satellite revolving in an orbit of radius r, v=GMr
Also GM=gR2
v=gR2r
For r=R+h
v=RgR+h

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