Question

The linear expansion of a solid is the increase in length of a wire or a rod of a solid due to increase in its_______​

Answer 1

Answer:

In physics, Thermal expansion can be defined as the change in the length, width, height, or volume of any material on changing the temperature. Thermal expansion is very evident in solids as atoms are densely packed.

Answer 2

The linear expansion of a solid is the increase in length of a wire or a rod of a solid due to increase in its TEMPERATURE.

• First of all, what is linear expansion?

• Linear expansion is 1 dimensional increase in the length or breadth or height of an object due to increase in the temperature of the object.

• The equation governing LINEAR EXPANSION is :

$\boxed{ \bf\Delta L = L \times \alpha \times \Delta \theta}$

Here, ∆L is change in length, L is initial length, $\alpha$ is the linear expansion coefficient and $\Delta\theta$ is the change in temperature.

___________________________

Other types of expansions:

• Surface expansion: 2 dimensional expansion of area of an object.

• Volume expansion: 3 dimensional expansion of volume of an object.