Q. An oil flowing on water seems coloured due to interference. For observing this effect, the approximate thickness of the oil film should be
A) $100\ \mathring{\mathrm{A}}$
B) $10000\ \mathring{\mathrm{A}}$
C) $1\ mm$
D) $1\ cm$
Explanation
The correct answer is Option B: $10000\ \mathring{\mathrm{A}}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.