The magnetic susceptibility of a paramagnetic | vedclass

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(C) According to Curie's Law,the magnetic susceptibility $\chi$ of a paramagnetic material is inversely proportional to its absolute temperature $T$,i

Vedclass · Accepted Answer

$0.0150$

Vedclass · Answer

(C) According to Curie's Law,the magnetic susceptibility $\chi$ of a paramagnetic material is inversely proportional to its absolute temperature $T$,i.e.,$\chi \propto \frac{1}{T}$.Therefore,$\frac{\chi_1}{\chi_2} = \frac{T_2}{T_1}$.Given:$T_1 = -73^{\circ} C = 273 - 73 = 200 \ K$$T_2 = -173^{\circ} C = 273 - 173 = 100 \ K$$\chi_1 = 0.0075$Substituting the values:$\chi_2 = \chi_1 	imes \frac{T_1}{T_2} = 0.0075 	imes \frac{200}{100} = 0.0075 	imes 2 = 0.0150$.Thus,the correct option is $C$.

The magnetic susceptibility of a paramagnetic material at $-73^{\circ} C$ is $0.0075$. Its value at $-173^{\circ} C$ will be

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