Question

A Ray of light passes from water to air .how are speed and frequency of light affected??

Answer 1

Hey dear
Here is ur answer......
°°° A ray of light changes as it enters another medium. As a result its wavelength changes but frequency remains constant.......
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Answer 2

The electric and magnetic fields have to remain continuous at the refractive index boundary. If the frequency changed, the light at each side of the boundary would be continuously changing its relative phase and there would be no way to match the fields.

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