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NEET 2007
Exam
NEET
Year
2007
Subject
Physics
Chapter
Magnetic Properties of Matter

NEET 2007 · Physics · Magnetic Properties of Matter

Nickel shows ferromagnetic property at room temperature. If the...

Nickel shows ferromagnetic property at room temperature. If the temperature is increased beyond Curie temperature, then it will show:

Options

  1. Aanti ferromagnetism
  2. Bno magnetic property
  3. Cdiamagnetism
  4. Dparamagnetism.

Correct answer

D. paramagnetism.

Step-by-step solution

Nickel exhibits ferromagnetism due to a quantum physical effect called exchange coupling. If the temperature of a ferromagnetic material is raised above a certain value, called curie temperature, the coupling ceases to be effective. Most such material then becomes simply paramagnetic. Hence option (D) is the correct answer.
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