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NEET UG PHYSICS MCQ: GRAVITATION

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If orbital velocity of planet is given by

v = {G^a}{M^b}{R^c}

, then

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Correct option: B

a = 1/2,\;b = 1/2,\;c = - 1/2

Option B (

a = 1/2,\;b = 1/2,\;c = - 1/2

) is correct because the orbital velocity formula is

v = \sqrt{\frac{{GM}}{R}} = G^{1/2}M^{1/2}R^{-1/2}

.

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Statement-2: Because rotation of earth is about polar axis.