Question

Why frequency does not change in reflection and refraction phenomenon?​

Answer 1

Frequency doesn't change because it depends on travelling of waves across the interface. But speed and wavelength change as the material on the other side may be different, so now it might have a longer/shorter size of wave and so the number of waves per unit time changes.

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Answer 2

hey mate here is ur ans

Frequency of light depends on the source of light so it does not change on refraction and reflection.

Hope it helps u

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