Statement - I :Ferromagnetic substances become paramagnetic above Curie temp.
Statement - II :Domains are destroyed at high temperature.

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Both statements I and II are correct

Statement-I is incorrect and statement-II is correct

Both statements I and II are incorrect

Statement-I is correct and statement-II is incorrect

answer is A.

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Detailed Solution

As temperature increases beyond Curie temperature, susceptibility decreases and the ferromagnetic substances become paramagnetic. Paramagnetic substance has no magnetic domain. At a very high temperature, the domains of ferromagnetic substance get destroyed and the substance transforms into paramagnetic substance.

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