Q 12-08-112JEE MainJEE Main 2023 (8 Apr, Shift 2)Easy
The power radiated from a linear antenna of length $l$ is proportional to (Given, $\lambda$ = wavelength of wave)
Answer: (B) $\left(\dfrac l\lambda\right)^2$
The power radiated by a linear antenna is proportional to $\left(\dfrac l\lambda\right)^2$, which is why short wavelengths (high frequencies) are used for transmission.
Solution by Sreeraj P, M.Sc Physics