Question

Change in length per unit length per unit change in temperature is defines as coefficient of linear expansion. Type 1 for true and 0 for false

Answer 1

Change in length per unit length per unit change in temperature is defines as coefficient of linear expansion

$\alpha =\frac{△L}{l_o△T}△L=\alpha l_o△T$

where $△L$ is the amount of change in length of wire

$l_o$ is the initial length of wire

$\alpha$ is the coefficient of linear expansion

$△T$ is the change in temperature of the matter