Question

Young's Modulus refers to changes in the a Volume b- Length c- Body layers

Answer 1

Step-by-step explanation:

Young' modulus is the ratio of normal stress to the longitudinal strain. Mathematically, it is given by :

Normal stress is given by force per unit area. Longitudinal strain is the change in length per unit original length.

The mathematical definition of Young's modulus is given by :

`Y=(F/A)/(\Delta L/L)`..........(1)

Where

`\Delta L` is the change in length

F is the force

A is the area of cross section

So, the Young's modulus refers to the change in length of the object. Hence, the correct option is (b) "length".