A satellite is revolving around the earth in an orbit of radius r with time period T . If the satellite is revolving around the earth in an orbit of radius r + ∆r (∆r<<r) with time period T + ∆T(∆T<<T), then
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Explanation:
By the way answer is ∆T/T=3/2∆r/r (1st Option)
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Initially, the satellite was revolving in an orbit of radius R in time interval T. Now, the same satellite is revolving around in an orbit of radius R + ∆R in a time interval T + ∆T.
From Kepler's Third Law,
Differentiating the above expression,
Option (A) is correct.
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