A geostationary satellite orbits around the earth in a circular orbit of radius 36000 km. Then, the time period of a satellite orbiting a few hundred kilometres above the earth’s surface (REarth=6400 km) will approximately be

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1/2 h

1 h

2 h

4 h

answer is C.

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Detailed Solution

T2T1=r2r13/2⇒T2=246400360003/2≅2 hour

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