The magnetic susceptibility of a paramagnetic material at `-73^(@)C "is" 0.0075`, its value at `-173^(@)C` will beA. 0.045B. 0.03C. 0.015D. 0.0075

The magnetic susceptibility of a paramagnetic material at `-73^(@)C "i

1.	The magnetic susceptibility of a paramagnetic material at `-73^(@)C "is" 0.0075`, its value at `-173^(@)C` will beA. 0.045B. 0.03C. 0.015D. 0.0075
Answer» Correct Answer - C `"Here", chi_(m_(1))=0.075` `T_(1)=-73^(@)C=(-73+273)K=200K` `T_(2)=-173^(@)C=(-173+273)K=100K, chi_(m_(2))=?` As for paramagnetic material magnetic susceptibility `chi_(m)alpha(1)/(T) Rightarrow (chi_(m_(2)))/(chi_(m_(1)))=(T_(1))/(T_(2))=(200)/(100)=2` `therefore chi_(m_(2))=2chi_(m_(1))=2xx0.075=0.015`

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The magnetic susceptibility of a paramagnetic material at `-73^(@)C "is" 0.0075`, its value at `-173^(@)C` will beA. 0.045B. 0.03C. 0.015D. 0.0075

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