Three particles of equal mass 'm' are si...

Three particles of equal mass 'm' are situated at the vertices of an equilateral triangle of side `L`. The work done in increasing the side of the triangle to `2L` is

`5.0xx10^(-12)J`

`2.25xx10^(-10)J`

`4.0xxx10^(-11)J`

`6.0xx10^(-15)J`

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