Q. What causes change in the colours of the soap or oil films for the given beam of light
A) Angle of incidence
B) Angle of reflection
C) Thickness of film
D) None of these
Explanation
(c) For viewing interference in oil films or soap bubble, thickness of film is of the order of wavelength of light
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.