Physics · Optics & Electrodynamics
A beam of light of frequency ω is reflected from a dielectric-metal interface at normal incidence. The refractive index of the dielectric medium is n and that of the metal is n2 = n(1 + 2iρ). If the beam is polarised parallel to the interface, then the phase change experienced by the light upon reflection is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1tan-1(2ρ)
- 2tan-1(2/ρ)✓
- 3tan-1(1/ρ)
- 4tan(2/ρ)
Correct answer
tan-1(2/ρ)
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