Q. Air has refractive index 1.0003. The thickness of air column, which will have one more wavelength of yellow light $(6000\mathring{\mathrm{A}})$ than in the same thickness of vacuum is
A) $2\ mm$
B) $2\ cm$
C) $2\ m$
D) $2\ km$
Explanation
The correct answer is Option A: $2\ mm$.
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.