Which of the following expressions gives the acceleration due to gravity at the…

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

Problem

Which of the following expressions gives the acceleration due to gravity

g

at the surface of a planet of mass

M

and radius

R

? (a)

g = \dfrac{4 \pi G M}{R^{2}}

(b)

g = \dfrac{G M}{R^{2}}

(c)

g = \dfrac{2 G M}{R^{2}}

(d)

g = \dfrac{G (M + m)}{R^{2}}

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