Question

22. When we get interference of light coming from different parts of the same slit, this is called?

a) Thin film interference

b) Reflection

c) Diffraction

d) Refraction

e) Distraction

Answer 1

option c) Diffraction is correct here because, in case of diffraction light bends when it passes around a slit or different parts of the same slit and cause the wave to have interference with itself.

film interference is not incorrect here because in the case of film interference light waves reflected by the upper and lower boundaries of a thin film and interfere with one another which either enhancing or reducing the reflected light.

reflection and refraction is the property of light of reflecting and bending respectively in the medium

and the term distraction is irrelevant term used here,

so that only diffraction is the most suitable answer for the given statement.