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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.R2√gR+hR√R+hgRg(R+h)2R√gR+h

A
RR+hg
B
R2gR+h
C
Rg(R+h)2
D
RgR+h
Solution
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#### Velocity of satellite revolving in an orbit of radius r, v=√GMrAlso GM=gR2⟹v=√gR2rFor r=R+hv=R√gR+h

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