Question

When exposed to sunlight, thin films of oil on water of ten exhibit brilliant colours due to the phenomenon of
(a) interference
(b) diffraction
(c) dispersion
(d) polarisation

Answer 1

Answer:

These colours arise due to interference of sun-light reflected from the upper and lower surface of the film. While bending of light rays at curvature of obstacles is called diffraction.

Answer 2

(b) diffraction

mark as brillienst answer