Four particle each of mass 1kg are at the four orners of a square of side lm. The workdone to move one of the particles to infinity:

Four particle each of mass 1kg are at the four orners of a square of s

1.	Four particle each of mass 1kg are at the four orners of a square of side lm. The workdone to move one of the particles to infinity:
Answer» `2sqrt(2)G` `((2sqrt(2) +1)/sqrt(2))G` `(2sqrt(2) +1)G` 3G Answer :B