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The value of g (acceleration due to grav...

The value of `g` (acceleration due to gravity) at earth's surface is `10 ms^(-2)`. Its value in `ms^(-2)` at the centre of the earth which is assumed to be a sphere of radius `R` metre and uniform mass density is

A

`5`

B

`10/R`

C

`10/(2R)`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D

Inside the earthh `g'[1-h/R]`
At centre `g'=g[1-R/R]=0`
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