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PhysicsNEET 2024Dia-, para- and ferromagnetism

Magnetism and Matter

Match List I with List II.

List I (Material) List II (Susceptibility χ\chi)
A. Diamagnetic I. χ=0\chi = 0
B. Ferromagnetic II. −1≤χ<0-1 \le \chi < 0
C. Paramagnetic III. χ≫1\chi \gg 1
D. Non-magnetic IV. 0<χ<ε0 < \chi < \varepsilon (a small positive number)

Choose the correct answer from the options given below:

  1. A.A-II, B-I, C-III, D-IV
  2. B.A-III, B-II, C-I, D-IV
  3. C.A-IV, B-III, C-II, D-I
  4. D.A-II, B-III, C-IV, D-I✓

Solution

Diamagnetic: small negative susceptibility, −1≤χ<0-1 \le \chi < 0 (II). Ferromagnetic: χ≫1\chi \gg 1 (III). Paramagnetic: small positive, 0<χ<ε0 < \chi < \varepsilon (IV). Non-magnetic: χ=0\chi = 0 (I).

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