Strain is a unitless quantity. Why?

Open in App

Solution

Strain is defined as the ratio of change in dimension of a body to the original dimension. E.g. longitudinal strain is defined as the ratio of change in length to the original length.
$L o n g i t u d i n a l s t r a i n = \frac{C h a n g e i n l e n g t h}{O r i g i n a l l e n g t h}$
Since it is a ratio of two quantities having the same dimension, strain is a unitless quantity.

Suggest Corrections

Similar questions

A unitless quantity:

Join BYJU'S Learning Program