A, B, C and D are four different physical quantities having different dimensions. None of them is dimensionless. But we know that the equation `AD= C 1n(BD)` holds true. Then which of the combination is not a meaningful quantity :-

Options

A. `(C )/(BD)-(AD^(2))/(C )`
B. `A^(2)-B^(2)C^(2)`
C. `(A)/(B)-C`
D. `((A-C))/(D)`

Answer

D

Explanation

Dimension of `Ane` dimension of (C )
Hence `A-C` is not possible.