Which among the following substances have negative susceptibility?

Correct option is C

The correct answer is: (c) Diamagnetic substances Explanation: Diamagnetic substances develop a magnetic moment opposite to the applied magnetic field, hence their magnetic susceptibility is negative. They are repelled by magnetic fields.
Information Booster:
· Examples: Bismuth, Copper, Water, Quartz.
· Susceptibility (χ) < 0.
· Independent of temperature.
· Caused by orbital motion of electrons.