Solveeit Logo

Question

Physics Question on Units and measurement

Which of the following is a dimensionless quantity?

A

specific heat

B

strain

C

quantity of heat

D

stress.

Answer

strain

Explanation

Solution

Strain = Extension in length  Original length =[L][L]=[L0]=\frac{\text { Extension in length }}{\text { Original length }}=\frac{[L]}{[ L ]}=\left[ L ^{0}\right] Therefore strain is a dimensionless quantity