Question-18 The variation of magnetic susceptibility (\chi) with temperature for a diamagnetic substance is shown correctly by graph

(A) D
(B) B
(C) A
(D) C
Answer : (C)
Explanation:
Magnetic susceptibility of a diamagnetic substance is independent of temperature.
Its value is low and negative \chi\approx1.
∴ Graph (A) correctly represents variation of magnetic susceptibility (\chi) with temperature for a diamagnetic substance.