If P, Q, R are physical quantities, having different dimensions, … - Vidyadip

MCQ

If $\ce{P, Q, R}$ are physical quantities, having different dimensions, which of following combinations can never be meaningful quantity?

✓
$\Big(\frac{\text{P}-\text{Q}}{\text{R}}\Big)$
B
$\text{PQ}-\text{R}$
C
$\frac{\text{PQ}}{\text{R}}$
D
$\frac{\text{PR}-\text{Q}^2}{\text{R}}$

✓

Answer

Correct option: A.

$\Big(\frac{\text{P}-\text{Q}}{\text{R}}\Big)$

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