Question

The colours of thin film result due to
1)disperation of light 2) scattering of light
3) polarization of light 4) selective absorption of light
5) interference of light

Answer 1

Explanation:

Thin film interference occurs when light waves reflecting off the top and bottom surfaces of a thin film interfere with one another. This type of interference is the reason that thin films, such as oil or soap bubbles, form colorful patterns. Constructive and Destructive interferance of light waves is also the reason why thin films, such as soap bubbles, show colorful patterns. This is known as thin-film interference because it is the interference of light waves reflecting off the top surface of a film with the waves reflecting from the bottom surface