Question

Match List I with List II.

List I (Material)		List II (Subsceptibility(χ))
A.	Diamagnetic	I.	χ = 0
B.	Ferromagnetic	II.	0 > χ ≥ –1
C.	Paramagnetic	III.	χ >> 1
D.	Non-magnetic	IV.	0 < χ < ε (a small positive number)

Choose the correct answer from the options given below:

• A. A-II, B-III, C-IV, D-I
• B. A-II, B-I, C-III, D-IV
• C. A-III, B-II, C-I, D-IV
• D. A-IV, B-III, C-II, D-I

Answer 1

The Correct Option is A

To solve the problem of matching List I with List II, we need to understand the magnetic susceptibility (χ) values typical for each type of material listed in List I.

1. Diamagnetic materials generally show a negative susceptibility close to zero, typically in the range of 0 > χ ≥ –1.

2. Ferromagnetic materials have very high susceptibility values where χ >> 1 due to their strong magnetic ordering.

3. Paramagnetic materials have small positive susceptibility values; therefore, the associated range for susceptibility would be 0 < χ < ε where ε is a small positive number.

4. Non-magnetic materials are neutral and have negligible susceptibility, typically represented as χ = 0.

Based on this understanding, the correct matching is:

A-II: Diamagnetic materials have a susceptibility of 0 > χ ≥ –1.

B-III: Ferromagnetic materials have a susceptibility of χ >> 1.

C-IV: Paramagnetic materials have a susceptibility in the range of 0 < χ < ε.

D-I: Non-magnetic materials have a susceptibility of χ = 0.

The correct option is thus: A-II, B-III, C-IV, D-I