Download App

5. Magnetism and matter — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics5. Magnetism and matter1 Mark
MCQ
A ferromagnetic material is heated above its curie temperature. Which one is a correct statement
  • A
    Ferromagnetic domains are perfectly arranged
  • ✓
    Ferromagnetic domains becomes random
  • C
    Ferromagnetic domains are not influenced
  • D
    Ferromagnetic material changes itself into diamagnetic material
✓

Answer

Correct option: B.
Ferromagnetic domains becomes random
b
(b)On heating, different domains have net magnetisation in them which are randomly distributes. Thus the net magnetisastion of the substance due to various domains decreases to minimum.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 5. Magnetism and matter→5. Magnetism and matter — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

In a region of constant potential:
→
Surface of certain metal is first illuminated with light of wavelength ${\lambda _1} = 350\,nm$ and then, the light of wavelength ${\lambda _2} = 540\,nm$. It is found that the maximum speed of the photo electrons in the two cases differ by a factor of $2$. The work function of the metal (in $eV$) is close to: (Energy of photon $ = \frac{{1240}}{{\lambda {\rm{(in\, nm)}}}}\,eV$)
→
Consider a wire carrying a steady current, I placed in a uniform magnetic field B perpendicular to its length. Consider the charges inside the wire. It is known that magnetic forces do no work. This implies that:
→
Which one of them is a radioisotope?
→
The energy level diagram for an hydrogen like atom is shown in the figure. The radius of its first Bohr orbit is
→
When a dielectric material is introduced between the plates of a charged condenser then electric field between the plates
→
The focal lengths for violet, green and red light rays are $f_V, f_G$ and $f_R$ respectively. Which of the following is the true relationship
→
The electrical resistance of depletion layer is large because
→
If an electromagnetic wave propagating through vacuum is described by $E_y=E_0 \sin (k x-\omega t)$; $B_z=B_0 \sin (k x-\omega t)$, then
→
Which of the following mirrors is used in searchlight?
→