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Claude Bile
#4
Feb24-12, 06:14 AM
Sci Advisor
P: 1,474
Why wavelength of light changes while its frequancy remains the same in refraction?

Nature requires that the phase of an EM wave must remain continuous across a boundary. In order for the phase to be continuous for all time the frequency must be constant.

Therefore, it is the wavelength that must change upon a change in velocity.

Claude.