Answer:
No, the resulting wave in the diagram does not demonstrate destructive interference. The resulting wave in the diagram shows a bigger wave than Wave 1 or Wave 2. If it demonstrated destructive interference, it would be a smaller wave or a horizontal line. With destructive interference, waves break down to form a smaller wave, or cancel each other out, resulting in no wave formation.
Answer: the colors come from the interference of light waves reflected from the opposite surfaces of the gasoline film. The correct option is 1.
Explanation:
These bright colours that are constructively produced under sunlight occurs due to interference of light waves reflected from the outer and inner surfaces of the thin layer of gasoline floating on water.
Thin film interference is a natural event that occurs due to reflection of interfered light waves from opposite surfaces of a thin film.
To know whether interference is constructive or destructive, you must determine if there is a phase change upon reflection. Thin film interference depends on.:
- film thickness,
-the wavelength of light, and
- the refractive indices.
For white light incident on a film that varies in thickness, you will observe rainbow colors of constructive interference for various wavelengths as the thickness varies.
They may be changed because they may find evidence of some thing that will change their perspective on things.