A planet has an escape speed of and the acceleration due to gravity at its surface is

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

Problem

A planet has an escape speed of

11\,\text{km s}^{-1}

and the acceleration due to gravity at its surface is

12\,\text{m s}^{-2}

. The radius of the planet is (a)

1.0\times10^{7}\,\text{m}

(b)

2.5\times10^{6}\,\text{m}

(c)

5.0\times10^{6}\,\text{m}

(d)

6.2\times10^{6}\,\text{m}