Question

A laser light of wave lenght 680nm enter from air to water. find the speed of laser light in water.​

Answer 1

Answer:

Light travels as waves, with the wavefronts perpendicular to the direction of motion. As light moves from air into water, it not only slows, but the wavelength changes. ... The animation below illustrates how the wavelength becomes shorter in the denser medium of water.

Answer 2

Answer:

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