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If P, Q and R are physical quantities ha...

If P, Q and 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:
a, d
Only similar quantities can be added or substrated.
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