Physics Magnetism and Matter JEE Main 2023 - ( Magnetic Properties of Matter ) MCQ (Single Correct)

Given below are two statements:

Statement - I: Susceptibilities of paramagnetic and ferromagnetic substances increase with decrease in temperature.

Statement - II: Diamagnetism is a result of orbital motions of electrons developing magnetic moments opposite to the applied magnetic field.

Choose the Correct answer from the options given below: -

A
Both statement -1 and statement -II are true.
B
Both statement -1 and Statement - II are false.
C
Statement - I is true but statement - II is false.
D
Statement-I is false but Statement-II is true.

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Text Solution

Verified by Experts
The correct answer is:
A

According to curie's law, magnetic susceptibility is inversely proportional to temperature for a fixed value of external magnetic field i.e. .

The same is applicable for ferromagnet & the relation is given as (Tc is curie temperature) Diamagnetism is due to non-cooperative behavior of orbiting electrons when exposed to external magnetic field.

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