Question

Which of the following is a use of dimensional analysis?

(a) To check the dimensional correctness of an equation

(b) To solve the equation dimensionally

(c) To get the number of dimensional constants

(d) To understand the dimensional equation

The question was asked by my college professor while I was bunking the class.

This interesting question is from Dimensional Analysis and its Applications in portion Units and Measurements of Physics – Class 11

Answer 1

Right choice is (a) To check the dimensional correctness of an equation

Easiest explanation: Dimensional analysis is basically used for two purposes. First, to check the dimensional correctness of an equation. Second, to convert a physical quantity from one system of units to another.