Question

23. Light of wavelength lamda in air enters a medium of refractive index n. What will be its wavelength, velocity and frequency in the medium?
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Answer 1

Answer:

To keep the frequency unchanged, the wavelength of light in the medium also decreases by the same factor as the decrease in the velocity of light. So altered wavelength of light in the medium= 6000A°/1.5 = 4000A° . So frequency of light in the medium= 5×10^14 Hz.

Answer 2

Answer:

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