How does the Young's modulus vary with the increase of temperature ?

Question

How does the Young's modulus vary with the increase of temperature ? (A) Decreases (B) Increases (C) Remains constant (D) First increases and then decreases.

Tardigrade Admin · Accepted Answer

The interatomic binding energy decreases with temperature. So, more strain is produced at higher temperature. Hence Y decreases.

Q. How does the Young's modulus vary with the increase of temperature ?

Decreases

Increases

Remains constant

First increases and then decreases.

The interatomic binding energy decreases with temperature. So, more strain is produced at higher temperature. Hence Y decreases.