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The relationship between $\;T_{3} \; , T_{2} \; , T_{1} \;$ is -

$(a)\;T_{1} >T_{2} >T_{3}\qquad(b)\;T_{3} >T_{2} >T_{1}\qquad(c)\;T_{1}=T_{2}=T_{3}\qquad(d)\;cant\;be\;determined$

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Answer : $T_{3} >T_{2} >T_{1}$
Explanation :
According to wien's displacement law ,
$\;\lambda_{m} T =constant$
Therefore , $\;\lambda \propto \large\frac{1}{T}$
therefore , $\;\lambda m_{1} > \lambda m_{2} > \lambda m_{3}$
$=T_{3} > T_{2} > T_{1}$
answered Mar 13, 2014 by yamini.v

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