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If A and B are two physical quantites ha...

If A and B are two physical quantites having different dimensions then which of the followintg can't denote a new physical quantity?

A

`A+A^(3)/B`

B

`exp (-A/B)`

C

`AB^(2)`

D

`A/B^(4)`

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
For (A): A and `A^(3)/B` may have same dimension.
For (B) : As A and B have different dimension so `exp(-A/B)` is meaningless.
for (C) : `AB^(2)` is meaningful.
for (D) : `AB^(-4)` is meaningful.
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