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  4. Starting from the centre of the earth having radius R, the variation of g (acceleration due to gravity) is shown by -

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Q. Starting from the centre of the earth having radius $R$, the variation of $g$ (acceleration due to gravity) is shown by -

NEETNEET 2016Gravitation

Solution:

$g_{in \; side} = \left( \frac{GM}{R^3} \right) r $
$g_{surface} = \frac{GM}{R^2}$
$g_{out \; side} = \frac{GM}{r^2}$

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