Q.

A satellite moves in a circle around the earth. The radius of this circle is equal to one half of the radius of the moon’s orbit. The satellite completes one revolution in

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a

12lunar month

b

23/2lunar month

c

23/2lunar month

d

23lunar month

answer is C.

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Detailed Solution

Time period of revolution of moon around the earth  = 1 lunar month.

TsTm=rsrm3/2=123/2Ts=23/2 lunar month.

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