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Find curie constant for a sample from ch...

Find curie constant for a sample from `chi` versus `1//T` graph shown in figure.

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From figure,
for `chi=0*5, 1/T=10xx10^-3K^-1=10^-2K^-1`
As `chi=C/T :. C=chi*T=0*5xx(1)/(10^-2)=50K`
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