1
KCET 2019
MCQ (Single Correct Answer)
+1
-0

If $$P, Q$$ and $$R$$ are physical quantities having different dimensions, which of the following combinations can never be a meaningful quantity?

A
$$\frac{P-Q}{R}$$
B
$$P Q-R$$
C
$$\frac{P Q}{R}$$
D
$$\frac{P R-Q^2}{R}$$
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