JEE PHYSICS MCQ: MAGNETISM AND MATTER

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Assertion (A): The properties of paramagnetic and ferromagnetic substance are not effected by heating.

Reason (R): As temperature rises, the alignment of molecular magnets gradually increases.

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Correct option: D

If both (A) and (R) are false

Option D is correct. The properties of paramagnetic and ferromagnetic substances are affected by heating, and as temperature rises, the alignment of molecular magnets gradually decreases, not increases.

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