Question

What do you mean by linear
expansion? what
are the factors
affecting it?​

Answer 1

Explanation:

Linear thermal expansion

The change in length is directly proportional with the change in temperature. The higher the temperature difference the higher the increase in length of the material (e.g. metal rod). ... The coefficient of linear thermal expansion is not constant but varies slightly with temperature.

The amount by which it expands depends on three factors: its original length, the temperature change, and the thermal (heat) properties of the metal itself.

Hope this will help you :)