Question

(11) The acceleration due to gravity at an interior point of the Earth, at a distance
r from the centre of the Earth, varies as
(a) 1/r (b) 1/r(c)r (d) rr
​

Answer 1

Answer:

A: 1/r

I think

hope this is right..

Answer 2

The acceleration due to gravity at an interior point of the Earth, at a distance  r from the centre of the Earth, varies as r .

We need to find how the acceleration due to gravity at an interior point of the Earth varies with the distance from the center .

We know , acceleration due to gravity inside the earth surface is given by :

$g=\dfrac{4}{3}\pi \rho \G r$

Here , $\rho$ is mass density of earth .

From the above formula we can notice that the acceleration due to gravity g inside the earth's surface is directly proportion to radius .

Therefore , option ( c ) is correct .

Hence , this is the required solution .

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Gravitation

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