First slide

Variation of g

Question

Which of the graphs fig. represents correctly the variation of intensity of gravitational field I with the distance r from the centre of a spherical shell of mass M and radius a ?

Easy

A
B
C
D

Solution

The variation of intensity of gravitational field with distance r from the centre of spherical shell is given by Inside spherical shell $r < I, I \infty r$ Outside spherical shell $r > R, I \propto 1 / r^{2}$
This is represented by graph [d).

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