Interference of light
When two or more light rays overlap, their wavelengths and phases are changed.This is called Interference of Light. This is discovered by Thomas young
In physics, interference is the addition of two or more waves that result in a new wave pattern. Interference usually refers to the interaction of waves that are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency.
The term interference has a different meaning in radio communications.
Wonders of interference of light
1. Different colors appear when oil falls on the water.2. Soap bubbles exhibit different colours
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