KCET · Physics · Units and Dimensions
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 \( \frac{P-Q}{R} \)
- C \( \frac{P R-Q^{2}}{R} \)
- D PQ - R
Answer & Solution
Correct Answer
(B) \( \frac{P-Q}{R} \)
Step-by-step Solution
Detailed explanation
(B)
Principle of homogeneity
Principle of homogeneity
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