Dimensionally valid operations – Rankers Physics
Topic: Unit And Dimensions
Subtopic: Dimensions

Dimensionally valid operations

Two physical quantities \(P\) and \(Q\) have different dimensions. The mathematical operation that is not possible among the following are
\(\frac{P}{Q}\)
\(PQ\)
\(P + Q\)
Both (1) and (2)

Solution:

According to the principle of homogeneity of dimensions, only quantities with identical dimensions can be added or subtracted. Multiplication and division of different physical quantities are allowed.

Leave a Reply

Your email address will not be published. Required fields are marked *