The length of an iron rod is measured by a brass scale. When both of them are at 20^(@)C, the lengthis 80 cm. What is the length of the rod at 100^(@)C as measured by the scale at 100^(@)C?The coefficient of linear expansion of brass and iron are 24xx10^(-6)(C^(@))^(-1) and 18xx10^(-6)(C^(@))^(-1) respectively.

The length of an iron rod is measured by a brass scale. When both of t

1.	The length of an iron rod is measured by a brass scale. When both of them are at 20^(@)C, the lengthis 80 cm. What is the length of the rod at 100^(@)C as measured by the scale at 100^(@)C?The coefficient of linear expansion of brass and iron are 24xx10^(-6)(C^(@))^(-1) and 18xx10^(-6)(C^(@))^(-1) respectively.
Answer» ANSWER :79.06 CM