The time period of a geostationary satellite is 24 h, at a height 6RE (REis radius of earth) from surface of earth. The time period of another satellite whose height is 2.5 RE from surface will be,
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a
122.5h
b
62 h
c
122 h
d
242.5h
answer is B.
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Detailed Solution
T2∝r3 T2∝RE+h3 T12T22=RE+6RE3RE+2.5RE3 T12T22=73723 T12 T22=8 T2=T122 T2=2422 T2=62 h
The time period of a geostationary satellite is 24 h, at a height 6RE (REis radius of earth) from surface of earth. The time period of another satellite whose height is 2.5 RE from surface will be,