Question:
Statement I : The ferromagnetic property depends on temperature. At high temperature, ferromagnet becomes paramagnet.
Statement II : At high temperature, the domain wall area of a ferromagnetic substance increases.
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement I : The ferromagnetic property depends on temperature. At high temperature, ferromagnet becomes paramagnet.
Statement II : At high temperature, the domain wall area of a ferromagnetic substance increases.
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement II : At high temperature, the domain wall area of a ferromagnetic substance increases.
In the light of the above statements, choose the most appropriate answer from the options given below :
Show Hint
Above the Curie temperature a ferromagnet turns paramagnetic because thermal agitation destroys domain alignment.
Updated On: Nov 4, 2026
- Statement I is false but Statement II is true
- Statement I is true but Statement II is false
- Both Statement I and Statement II are false
- Both Statement I and Statement II are true
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The Correct Option is B
Solution and Explanation
Statement I: Ferromagnetism depends on temperature. Above the Curie temperature the thermal motion destroys the alignment of magnetic moments within domains and the material behaves as a paramagnet. So Statement I is true.
Statement II: With rising temperature the domains break up and disappear; the ordered domain structure is lost, so the domain wall area does not increase (it effectively vanishes at the Curie point). So Statement II is false.
Hence Statement I is true but Statement II is false.
Answer: (2) Statement I is true but Statement II is false
Statement II: With rising temperature the domains break up and disappear; the ordered domain structure is lost, so the domain wall area does not increase (it effectively vanishes at the Curie point). So Statement II is false.
Hence Statement I is true but Statement II is false.
Answer: (2) Statement I is true but Statement II is false
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