Q 12-08-210JEE MainJEE Main 2019 (9 Apr, Shift 2)Easy
The physical sizes of the transmitter and receiver antenna in a communication system are
Answer: (D) inversely proportional to carrier frequency
An antenna must be comparable in size to the wavelength it radiates (typically $\lambda/4$). The radiated wave is the carrier, and $\lambda = c/f_c$, so the antenna size is inversely proportional to the carrier frequency.
Solution by Sreeraj P, M.Sc Physics