(C) Diamagnetic materials exhibit a weak magnetism in the direction opposite to the applied magnetic field.Therefore,the Assertion is correct.However,

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If the Assertion is correct but Reason is incorrect.

(C) Diamagnetic materials exhibit a weak magnetism in the direction opposite to the applied magnetic field.Therefore,the Assertion is correct.However,diamagnetic materials do not have a permanent magnetic dipole moment because all electrons are paired,resulting in a net magnetic moment of zero.Therefore,the Reason is incorrect.Thus,the correct option is $C$.

Class 12 Physics Magnetism and Matter Magnetic Materials (Diamagnetic, Paramagnetic and Ferromagnetic)

Easy

Assertion : Diamagnetic materials can exhibit magnetism.
Reason : Diamagnetic materials have permanent magnetic dipole moment.

AIIMS 2006 All AIIMS

A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.