A signal is to be transmitted through a wave of wavelength λ, using...

Options

1. A$\dfrac{\lambda}{8}, {P}_{eff} = K\left(\dfrac{l}{\lambda}\right)$
2. B\dfrac{\lambda}{16}, {P}_{eff} = K{\left(\dfrac{l}{\lambda}\right)}^{3}
3. C\dfrac{\lambda}{5}, {P}_{eff} = K$\left(\dfrac{l}{\lambda}\right)\dfrac{1}{2}$
4. D\lambda, {P}_{eff} = K{\left(\dfrac{l}{\lambda}\right)}^{2}