A bar of initial length /0 is heated throug..

Question 1 Report

A bar of initial length /0 is heated through a temperature change $Δ$ t to a new length I. The linear expansivity, a, of the bar is

$\frac{/ - /_{o}}{/_{o} Δ t}$

\frac{/ - /_{o}}{/_{o} Δ t}

/o(1 +

Δ

/−/o

/(1+Δt)

A bar of initial length /0 is heated through a temperature change Δ Δ t to a new length I. The linear expansivity, a, of the bar is