First slide

Elastic Modulie

Question

Fig. shows the change x in the length of a thin uniform wire caused by the application of stress F at two different temperatures T₁ and T₂ . The variations shown suggest that:

Easy

A

$T_{1} > T_{2}$
B

$T_{1} < T_{2}$
C

$T_{1} = T_{2}$
D

$T_{1} \neq T_{2}$

Solution

Y $α \frac{F}{X}$
$a n d Y \propto \frac{1}{θ} W H E R E θ = T i s t e m p e r a t u r e T_{1} > T_{2}$

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