Question:
Which of the following statements are correct?
(i) Ferrimagnetic substances lose ferrimagnetism on heating and become
paramagnetic.
(ii) Ferrimagnetic substances do not lose ferrimagnetism on heating and
remain ferrimagnetic.
(iii) Antiferromagnetic substances have domain structures similar to
ferromagnetic substances and their magnetic moments are not cancelled
by each other.
(iv) In ferromagnetic substances, all the domains get oriented in the direction
of the magnetic field and remain as such even after removing magnetic field.
Solution:
Option (i) and (iv) are the answers.