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Questions  

A satellite in equatorial plane is rotating in the direction of earth's rotation with time interval between its two consecutive appearances over head of an observer as time period of rotation of the earth , TE. What is the time period of the satellite? 

a
TE
b
2TE
c
TE2
d
2TE3

detailed solution

Correct option is C

For observer, T′=2πωS−ωE=TSTETE−TS                           =TE( given ) or TE2=2TSTE TS=TE/2

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