Question

If A, B and C are three physical quantities such
that A and B are of same dimensions while C has
different dimensions, then which of the following
may be meaningful
(2) (C-26)
(1) (AHC)
(3) BAC
(4) (2A-38)

Answer 1

Answer:

Question is incorrect.

Explanation:

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Answer 2

If A,B and C are three physical quantities such that A and B are of same dimensions while C has different dimensions, then (3) is meaningful.

Only physical quantities with same dimensions can be added to or subtracted from each other.

Physical quantities with different dimensions can be multiplied or divided but can never be added to or subtracted from each other.