Physics, asked by satish233, 8 months ago

38. For which wave the refractive index is purely
imaginary?
(A) Low frequency wave
(B) High frequency wave
(C) Electromagnetic wave
(D) Polarised wave

Answers

Answered by Anonymous

The real part of a refractive index is the ratio of the free-space speed of light to the phase speed of an electromagnetic wave in the medium. The imaginary part of a refractive index is related to the absorption coefficient by 4πmi/λ. For a real refractive index, only scattering can take place.

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