The magnetic susceptibility $\chi$ for superconductors is . . . . . . .

Identify the incorrect statement from the following.

Magnetic shielding is done by surrounding the instrument to be protected from magnetic field by

The magnetic moment of a diamagnetic atom is

Which of the following statements is true in respect of diamagnetic substances?

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: