Dimensional formula for Joule's mechanical equivalent is

1.	Dimensional formula for Joule's mechanical equivalent is
Answer» `[M^(-1)L^(-3)T^(4)A^(2)]` `[M^(0)L^(0)T^(0)A^(0)]` `[M^(-1)LTA^(-1)]` `[M^(-1)L^(-1)T^(4)]` ANSWER :B

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