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If three particles each of mass m are pl...

If three particles each of mass m are placed at the three corners of an equilational triangle of side 1, the workdone to increase the side of that triangle 21 is:

A

`(3Gm^(2))/l`

B

`(3Gm^(2))/(2l)`

C

`(Gm^(2))/(2l)`

D

`(Gm^(2))/l`

Text Solution

Verified by Experts

The correct Answer is:
B
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