Q.

A satellite is launched into a circular orbit of radius 'R' around the earth. A second statellite is launched into an orbit of radius 1.03 R. The time period of revolution of the second satellite is larger than the first one approximately by :-

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a

3 %

b

4.5 %

c

9 %

d

2.5 %

answer is B.

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Detailed Solution

 T2=KR3 2ΔTT=3ΔRR 2ΔTT=3×0.03RR ΔTT=3×0.032×100=4.5%

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