MHT CET Physics question
Kepler's third law states that square of period of revolution () of a planet around the sun, is proportional to third power of average distance between the sun and planet, i.e. , here is constant. If the masses of the sun and planet are and respectively, then as per Newton's law of gravitation force of attraction between them is , here is gravitational constant. The relation between and is described as
Answer: (B)
Solution
Equating gravitational force to centripetal force, gives , so
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