4.
A planet is revolving around a star in a circular
orbit of radius R with a period T. If the
gravitational force between the planet and the
star is proportional to R-32, then
(A) T2 R52
(B) T² OR-72
(C) T² R32
(D) To R4
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Answer:
your answer is B
Explanation:
IT is use ful to you please mark as a brainiest answer
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