First slide

Gravitational field intensity

Question

Two identical point masses are placed at a separation of d. Out of the following graphs the graph that represents the variation of gravitational field intensity E with the distance r from any one mass to the other along the line joining them is

Easy

A
B
C
D

Solution

$\large E_P=\frac{G_m}{(d-x)^2}$
As x → 0, E - infinity
As x → d , E → 0
At x = d/2 , E =0
Therefore option - (2) is correct.

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