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Two planets are of the same material but...

Two planets are of the same material but their radii are in the ratio `2:1`. Then ratio of accelerations due to gravity on those two planets is

A

`2:1`

B

`1:2`

C

`4:1`

D

`1:4`

Text Solution

Verified by Experts

The correct Answer is:
a
`(g_(1))/(g_(2))=(rho_(1))/(rho_(2))xx(R_(1))/(R_(2))=1xx(2)/(1)=(2)/(1).`
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