Q124 / 150 · MHT CET 2020 (14 Oct Shift 1) · Physics
According to theoretical study of radiation from a same linear antenna, the power radiated is proportional to $[\lambda=$ wavelength $]$
- Correct answerA$\lambda^{-2}$
- B$\lambda^{-1}$
- C$\lambda^{2}$
- D$\lambda$
Solution
A linear antenna radiates power proportional to $\left(\frac{1}{\lambda}\right)^{2}$.
Hence a longer antenna emits more power. Also power radiated by a long wavelength base would be small.
Hence, the correct answer is option: 'A'.