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  4. The variation of acceleration due to gravity g with distance d from centre of the earth is best represented by (R = Earth’s radius) :

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Q. The variation of acceleration due to gravity $g$ with distance $d$ from centre of the earth is best represented by (R = Earth’s radius) :

JEE MainJEE Main 2017Gravitation

Solution:

Variation of g inside earth surface
$d < R = g = \frac{Gm}{R^{2}} .d$
$ d=R =g_{s} = \frac{Gm}{R^{2}}$
$ d > R = g = \frac{Gm}{d^{2}} $

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