Mht Cet
Wave Optics
MHT CET 2023 14th May Evening Shift
MCQ+1 / -02023
On replacing a thin film of mica of thickness \(12 \times 10^{-5} \mathrm{~cm}\) in the path of one of the interfering beams in Young's double slit experiment using monochromatic light, the fringe pattern shifts through a distance equal to the width of bright fringe. If \(\lambda=6 \times 10^{-5} \mathrm{~cm}\), the refractive index of mica is