Question

how alpha in linear thermal expansion has inverse relation with delta Temperature.​

Answer 1

Explanation:

As you might know,

The formula for linear thermal expansion is,

(delta,L) = alpha * L * (delta,T)

When length is kept constant then,

alpha * (delta,T) = constant

alpha = constant * 1 / (delta,T)

alpha is proportional to 1 / (delta,T)

This implies, Alpha is inversely proportional to (delta,T)

That means when a material requires greater change in temperature for unit change of length then its thermal coefficient, i.e., alpha, is less and vice versa.