According to theoretical study of radiation from a same linear antenna, the power radiated is proportional…

According to theoretical study of radiation from a same linear antenna, the power radiated is proportional to $[\lambda=$ wavelength $]$
  1. $\lambda^{-2}$
  2. $\lambda^{-1}$
  3. $\lambda^{2}$
  4. $\lambda$

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.

Asked in: MHT CET 2020 (14 Oct Shift 1)

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