Which of the following operations of the functions of A and B can be performed if A and B posses different dimensions?

Options

A. `A+B`
B. `A-B`
C. `(A)/(B)`
D. `sqrt((A+B)/(A-B))`

Answer

c

Explanation

In every dimensionally correct equations all terms have the same dimensions.
`therefore` As A and B have different dimensions, we cannot perform the operations.
`A+B,A-B andsqrt((A+B)/(A-B))`
But we can perform `(A)/(B)`
e.g. Power `=("Work")/("Time")`