Monochromatic light of wavelength 589nm is incident from air on a water surface. What are the wavelength, frequency and speed of (a) Reflected, and (b) Refracted light? Refractive index of water is 1.33.
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(a) Reflected light: (wavelength, frequency, speed same as incident light)
Now, ν=cλ=3×108589×10−9 = 5.09×1014s−1
(b) Refracted light: (frequency same as the incident frequency)