Question

A copper and an iron rod undergo the same increase in length at all temperature .Is it possible? Write the necessary condition required for the same​

Answer 1

Answer:

Explanation:

Here is your answer,

Yes, it is possible to describe the difference of length to remain constant. So, the change in length of each rod must be equal at all temperatures. Let Lb and Ls be the length of the brass and the steel rod and αb and αs be the coefficients of linear expansion of the two metals. Let there is change in temperature be ΔT.

Then, αbLb ΔT = αs Ls ΔT

or αbLb = αs Ls => Lb/Ls = αs/αb

Hence, the lengths of the rods must be in the inverse ratio of the coefficients of linear expansion of their materials.

Hope it helps you !

Answer 2

Answer:

Yes, it is possible

Explanation:

It is possible to describe the difference of length to remain constant. So, the change in length of each rod must be equal at all ...