Qstnid -I-2-the Wavelength Of Light In A Medium Is Λ=λ0/μ, Where Λis The Wavelength In Vacuum. A Beam Of Red Light Λ0=720 Nmenters Water. The Wavelength In Water Is Λ=λ0/μ=540 Nm. To A Person Under Water, Does This Light Appear Green? - 17: Light Waves - Neet-xii-physics

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NEET-XII-Physics

17: Light Waves

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#2
The wavelength of light in a medium is
λ=λ0/μ, where
λis the wavelength in vacuum. A beam of red light
λ0=720 nmenters water. The wavelength in water is
λ=λ0/μ=540 nm. To a person under water, does this light appear green?
Ans : Colour of light will depend only on the frequency of light and not on the wavelength of the light. So, light will appear red to an observer under water.
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