Question

Why intensity of gravitational field at a point inside a hollow spherical shell is zero?

Answer 1

Explanation:

The formula for gravitational field intensity

I=−GM/x²

The formula for gravitational potential is

V=−GM/x

And the relation between I and V is,

I=−dV/dx .......(1)

From shell theorem, we obtain the result that the gravitational field intensity inside the hollow spherical is zero.

So, from the equation (1) we can write

0=−dV/dx∴V=constant (Inside the shell.)