Consider the following standard spin arrangements in magnetic materials: I. Arrows alternately pointing up and down with equal magnitude. II. All arrows pointing uniformly in the same upward direction. III. All arrows pointing in random, disordered directions. IV. Arrows pointing up and down alternately, but with unequal magnitudes. Which of these arrangements represent ferromagnetic and ferrimagnetic materials respectively?

Which of the following statements is correct about ferromagnetic materials?

Which of the following statements is correct about anti-ferromagnetic materials?

Given below are two statements regarding a ferromagnetic material: Assertion (A): The individual atoms in a ferromagnetic material possess a magnetic dipole moment and interact with one another in such a way that they spontaneously align themselves forming domains. Reason (R): At high enough temperature, the domain structure of a ferromagnetic material disintegrates. Thus, magnetization will disappear at a high enough temperature known as the Curie temperature. In the light of the above statements, choose the correct answer from the options given below: