A , B , C and D are four different physical quantities having different dimensions. None of them is dimensionless. But we know that the equation A D = C l n ( B D ) holds true. Then which of the combination is not a meaningful quantity ?

Question

A , B , C and D are four different physical quantities having different dimensions. None of them is dimensionless. But we know that the equation A D = C l n ( B D ) holds true. Then which of the combination is not a meaningful quantity ?, C B D - A 2 D 2 C, A 2 - B 2 C 2, A B - C, A 2 − A C D

MARKS App · Accepted Answer

The dimension of A is not equal to the dimension of C Hence it is not possible to subtract A C from A 2

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