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Questions  

If g1R3 (instead of 1R2), then the relation between time period of a satellite near earth's surface and radius R will be

a
T2∝R3
b
T∝R2
c
T2∝R
d
T∝R

detailed solution

Correct option is B

Gravitational force provides the required centripetal forcemω2R=GMmR3⇒4π2T2=GMR4⇒T2∝R4⇒T∝R2

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