Radius of orbit of satellite of earth is R . Its kinetic energy is proportional to

Q: Radius of orbit of satellite of earth is R . Its kinetic energy is proportional to

(a) $\frac{1}{R} $

(b) $\frac{1}{\sqrt{R}} $  1/√R

(c) R

(d) $\frac{1}{R^{3/2}} $

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Ans: (a)