Two spherical planets P and Q are made of the same material (uniform density)

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

Problem

Two spherical planets P and Q are made of the same material (uniform density). Their radii are in the ratio

R_{\text{P}}:R_{\text{Q}} = 1:2

. What is the ratio of their surface accelerations due to gravity

g_{\text{P}}:g_{\text{Q}}

? (a)

1:4

(b)

2:1

(c)

1:2

(d)

1:1