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Assuming the earth to be a sphere of uni...

Assuming the earth to be a sphere of uniform density, the acceleration due to gravity

A

at a point outside the earth is inversely proportional to the square of its distance from the centre

B

at a point outside the earth is inversely proportional to its disatance from the centre

C

at any point inside is zero

D

at a point inside is proportional to its distance from the centre.

Text Solution

Verified by Experts

The correct Answer is:
A, D
`g=(Gm)/(R^(3))xxr` for `r lt R`
`g = (Gm)/(r^(2))` for `r gt R`
so choice (A) and (D) are correct
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