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The variation of susceptibility ($\chi$) with absolute temperature (T) for a paramagnetic material is represented as: [add image: four graphs of chi vs 1/T]
A
[add image: chi vs 1/T straight line through origin]
B
[add image: chi vs 1/T decreasing straight line]
C
[add image: chi vs 1/T constant horizontal line]
D
[add image: chi vs 1/T exponential curve]
Detailed Solution
By Curie's law for a paramagnetic material, $\chi\propto\dfrac{1}{T}$. So a graph of $\chi$ vs $\dfrac{1}{T}$ will be a straight line through the origin.