GATE 2023 PH – Question 19
For a non-magnetic metal, which one of the following graphs best represents the behaviour of C T vs. T2, where C is the heat capacity and T is the temperature?
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Correct answer: (B) Option B in the figure
Explanation
$C=\gamma T+\beta T^3$, so $C/T=\gamma+\beta T^2$ is a straight line with a positive intercept.