Q. The length of a half wave dipole at 30 MHz is
A) 10 m
B) 50 m
C) 5 m
D) 100 m
Explanation
(c) $\lambda = \frac{c}{v} = \frac{3 \times 10^{8}}{30 \times 10^{6}} = 10\ m$
$l = \frac{\lambda}{2} = \frac{10}{2} = 5m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.