Given below are two statements:
Statement I: The diamagnetic property depends on temperature.
Statement II: The included magnetic dipole moment in a diamagnetic sample is always opposite to the magnetizing field.
In light of the given statement, choose the correct answer from the options below:
Statement I is incorrect but Statement II is true.
Both Statement I and Statement II are true.
Both Statement I and Statement II are false.
Statement I is correct but Statement II is false.
Correct answer:A
Standard Method
Given: Two statements about diamagnetism are to be checked.
Find: Which option correctly identifies the truth values of Statement I and Statement II.
Step 1: Analyze Statement I Diamagnetic properties are independent of temperature. Therefore, Statement I is incorrect.
Step 2: Analyze Statement II In diamagnetic materials, the induced magnetic dipole moment is opposite to the external magnetic field. Therefore, Statement II is true.
Conclusion: Statement I is incorrect and Statement II is true. Hence, the correct option is A.
Note: The solution displayed option D, but its written explanation matches option A. The explanation is taken as authoritative here.
Statement-wise Evaluation
Given: A statement-based question on diamagnetic materials.
Find: The correct combination of true and false statements.
For diamagnetic substances, susceptibility is negative and is nearly independent of temperature. So the claim that the diamagnetic property depends on temperature is false.
Also, when an external magnetic field is applied, the induced magnetic dipole moment in a diamagnetic sample is produced in a direction opposite to the applied field. Hence Statement II is true.
Therefore, the correct choice is the one stating that Statement I is incorrect and Statement II is true, which is option A.
Assuming all magnetic properties depend on temperature is incorrect. Paramagnetism commonly shows temperature dependence, but diamagnetism is generally temperature independent. Check the type of magnetic material before applying such rules.
Confusing induced magnetic dipole moment in diamagnetic materials with paramagnetic alignment is wrong. In diamagnetism, the induced moment always opposes the applied field, not aligns with it.
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