Assertion: The ferromagnetic substance does n | vedclass

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(A) The magnetic susceptibility of a ferromagnetic substance does not follow a simple linear relationship with temperature like paramagnetic substance

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) The magnetic susceptibility of a ferromagnetic substance does not follow a simple linear relationship with temperature like paramagnetic substances. Instead,it decreases in a complex manner as temperature increases. Curie's law states that susceptibility $\chi \propto 1/T$. Ferromagnetic substances only begin to obey this law after they are heated above their Curie temperature $(T_C)$,where they transition into a paramagnetic state. Therefore,the assertion that they do not obey Curie's law (in their ferromagnetic state) is correct,and the reason explains the transition at the Curie point.

Assertion: The ferromagnetic substance does not obey Curie's law.
Reason: At Curie point,a ferromagnetic substance starts behaving as a paramagnetic substance.

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Assertion: The ferromagnetic substance does not obey Curie's law.Reason: At Curie point,a ferromagnetic substance starts behaving as a paramagnetic substance.