The two waves are interfering with the reflections from the top and bottom of the oil film.
<h3>Thin Film Interference:</h3>
A natural phenomenon known as "thin-film interference" occurs when light waves reflected by a thin film's upper and lower limits collide with one another, either boosting or weakening the light that is reflected.
Interference is what gives an oil slick floating on water or a soap bubble in the light of their vibrant colors. Colors that interfere positively are the ones with the brightest hues. Thin film interference is the name given to the phenomenon because it occurs when light reflected from many thin film surfaces interferes with one another.
Because light waves reflecting from the top surface of a film interfere with waves reflecting off the bottom surface, this phenomenon is known as thin-film interference.
Learn more about thin film interference here:
brainly.com/question/17074217
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