Question

The susceptibility of a paramagnetic substance was found for different temperatures and a graph of $\chi$ against $\frac{1}{T}$ was plotted. From the graph, it was found that what $\chi =0.5,\frac{1}{T}=5\times {10}^{-3}/K$. What is the curie constant for the substance ?

• A. 50 K
• B. 75 K
• C. 100 K
• D. 125 K

Answer 1

The correct option is C 100 K

Curie's law : $\chi =\frac{c}{T}$

So, $0.5=c\times 5\times {10}^{-3}$

$⟹c=100K$