MCQ
If P, Q, R are physical quantities, having different dimensions, which of following combinations can never be meaningful quantity?
  • A
    $\Big(\frac{\text{P}-\text{Q}}{\text{R}}\Big)$
  • B
    $\text{PQ}-\text{R}$
  • C
    $\frac{\text{PQ}}{\text{R}}$
  • D
    $\frac{\text{PR}-\text{Q}^2}{\text{R}}$

Answer

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

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