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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 equilateral triangle of side 1, the workdine 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

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The correct Answer is:
B
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