Light of Wavelength 5000Å Propagating in Air Gets Partly Reflected from the Surface of Water. How Will the Wavelengths and Frequencies of the Reflected and Refracted Light Be Affected? - Physics

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Light of wavelength 5000 Å propagating in air gets partly reflected from the surface of water. How will the wavelengths and frequencies of the reflected and refracted light be affected?

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Solution

The frequency and wavelength of reflected wave will not change.

The refracted wave will have same frequency.

The velocity of light in water is given by

v=λf

where
v = Velocity of light

= Frequency of light

λ = Wavelength of light 

If velocity will decrease, wavelength (λ) will also decrease.

Concept: Refraction
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2014-2015 (March) Delhi Set 2

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