Question

Define coefficient of linear expansion of solid.obtain
an
expression for it and
also state its units.​

Answer 1

Explanation:

Consequently, the coefficient of linear expansion is expressed as the per degree Celsius, or change in the length of a 1 unit long material when there is a 10 C rise in temperature. Coefficient of Linear

Expansion Formula. As per the definition, the formula is expressed as.

αL1 = ∆L / ∆T

αL1=dL/dT

where,

a is define coefficient of linear expansion.

L1 is the initial length of the material.

dL indicates a unit change in length.

dT indicates a unit change in temperature.

SI unit:-

The SI unit of coefficient of linear expansion can be expressed as °C^-1 or °K^-1.

Here, C indicates Celsius and K indicate Kelvin.

DIMENSION:-

The dimension of coefficient of linear expansion will be [M^0 L^0 T^0 K^-1]