Question Bank MCQ • 1 Mark Section 3: Electromagnetic Theory Waveguides and radiation

QB_PH_077: Waveguides and radiation

Question Statement

The angular distribution of radiated power from an electric dipole aligned with $z$-axis is proportional to:
(A) \sin^2\theta
(B) \cos^2\theta
(C) \sin\theta
(D) 1 + \cos^2\theta
Correct Answer
A
Verified Key

Step-by-Step KaTeX Derivation & Detailed Explanation

### Solution: $dP/d\Omega \propto \sin^2\theta$, vanishing along the dipole axis.
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