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  • The magnetic susceptiblity of paramagnetic susbtance at -73oC is 0.0060, then its value at -173oC will beOption: 1 0.0030</

The magnetic susceptiblity of paramagnetic susbtance at -73oC is 0.0060, then its value at -173oC will be

Option: 1

0.0030


Option: 2

0.0120


Option: 3

0.0180


Option: 4

0.0045


Answers (1)

As we have learnt,

 

susceptibility above curie temperature -

\chi _{m}= \frac{C}{T-T_{c}}

- wherein

(T>Tc)

 

 As magnetic susceptiblity x_m \propto \frac{1}{T}, therefore

\\*\frac{x_2}{x_1} = \frac{T_1}{T_2} \Rightarrow \frac{x_2}{0.0060} = \frac{273-73}{273-173} = \frac{200}{100} = 2 \\\\* x_2 = 2\times 0.0060 = 0.0120

 

 

Posted by

Sumit Saini

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