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Question: Answered & Verified by Expert
If PQ and R are physical quantities, having different dimensions, which of the following combinations can never be a meaningful quantity?
PhysicsUnits and DimensionsJEE Main
Options:
  • A PQQ2R
  • B PQ-R
  • C PQR
  • D PR-Q2R
Solution:
1468 Upvotes Verified Answer
The correct answer is: PQQ2R
P-QQR

Since P and Q have different dimensions, therefore, their subtraction is not possible

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