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If P, Q, R are physical quantities, havi...

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

A

`(P-Q)//R`

B

`PQ-R`

C

`PQ//R`

D

`(R + Q)//P`

Text Solution

Verified by Experts

The correct Answer is:
B, D
We should keep in mind that when two physical quantities are added or subtracted they should have same dimensions.
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