The variation of magnetic susceptibility $(\chi)$ with temperature $(T)$ for a diamagnetic substance is shown correctly by which graph?

Assertion: The ferromagnetic substance does not obey Curie's law.
Reason: At Curie point,a ferromagnetic substance starts behaving as a paramagnetic substance.

Explain ferromagnetism and ferromagnetic substances.

Consider the following statements regarding paramagnetic substances:
$A$. They are weakly attracted by an external magnetic field.
$B$. They are strongly attracted by an external magnetic field.
$C$. Their magnetic susceptibility $(\chi)$ is small and positive.
$D$. In a non-uniform magnetic field, they move from a region of strong magnetic field to a region of weak magnetic field.
Which of the above statements are correct?

If a diamagnetic solution is poured into a $U-$ tube and one arm of this $U-$ tube is placed between the poles of a strong magnet with the meniscus in line with the field,then the level of the solution will:

If a ferromagnetic material is inserted in a current-carrying solenoid,the magnetic field of the solenoid