If $A$ and $B$ are two physical quantities having different dimensions then which of the following can't denote a physical quantity?
If $A$ and $B$ are two physical quantities having different dimensions then which of the following can't denote a physical quantity?
- A
$A + \frac{{{A^3}}}{B}$
- B
$\exp \,\left( { - \frac{A}{B}} \right)$
- C
$AB^2$
- D
$\frac{A}{{{B^4}}}$
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