The value of acceleration due to gravity is at a height ( = radius of the earth) from…

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

Problem

The value of acceleration due to gravity is

g_1

at a height

h = \frac{R}{2}

(

R

= radius of the earth) from the surface of the earth. It is again equal to

g_1

and a depth

d

below the surface of the earth. The ratio

\left( \frac{d}{R} \right)

equals : (1)

\frac{4}{9}

(2)

\frac{5}{9}

(3)

\frac{1}{3}

(4)

\frac{7}{9}