| ASSERTION: A paramagnetic sample display greater magnetism (for the same magnetizing field) when cooled. |
| REASON: The magnetization does not depend on temperature. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: C
Solution :
A paramagnetic sample display greater magnetization when cooled, this is because at lower temperature, the tendency to disrupt the alignment of dipoles (due to magnetizing field) decreases on account of reduced random thermal motion.
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