Imagine a light planet revolving around a very massive star in a circular orbit of…

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

Imagine a light planet revolving around a very massive star in a circular orbit of radius

R

with a period of revolution

T

. If the gravitational force of attraction between the planet and the star is proportional to

R^{-5/2}

. (1)

T^2

is proportional to

R^3

(2)

T^2

is proportional to

R^{7/2}

(3)

T^2

is proportional to

R^{3/2}

(4)

T^2

is proportional to

R^{3/73}