Question

4. Let the period of revolution of a planet
at a distance R from a star be T. Prove
that if it was at a distance of 2R from
the star, its period of revolution will be
√8
T.​

Answer 1

Answer:

here is your answer

hope it helps you

Answer 2

According to keplers law the square of the time period will proportional to square of the time period.

hence

t1²/t2² = R³/(2R)³

t1²/t2² = R³/8R³

therefore t2 will be root 8 t1

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