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प्रश्न
Why does a paramagnetic sample display greater magnetisation (for the same magnetising field) when cooled?
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उत्तर
Owing to the random thermal motion of the molecules, the alignments of dipoles get disrupted at high temperatures. On cooling, this disruption is reduced. Hence, a paramagnetic sample displays greater magnetisation when cooled.
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| List-I (Material) | List-II (Susceptibility) | ||
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Choose the correct answer from the options given below:
