Estimate the wavelength at which plasma reflection will occur for a metal having the…

PHYSICS · Single correct · CBSE · Physics · Electromagnetic Waves · Electromagnetic Waves

Problem

Estimate the wavelength at which plasma reflection will occur for a metal having the density of electrons

N \approx 4 \times 10^{27} \text{ m}^{-3}

. Taking

\epsilon_0 = 10^{-11}

and mass

m \approx 10^{-30}

, where these quantities are in proper SI units. (1) 800 nm (2) 600 nm (3) 300 nm (4) 200 nm