Assertion (A) The magnetic moment (μ) of an electron revolving around the nucleus decreases with increasing principle quantum number (n). Reason (R) Magnetic moment of the revolving electron, μ ∝ n.

• A. If both Assertion and Reason are true and Reason is correct explanation of Assertion.
• B. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
• C. If Assertion is true but Reason is false.
• D. If both Assertion and Reason are false.