KCET 2020 Physics Solved Paper

In Young’s Double Slit Experiment, the distance between the slits and the screen is 1.2 m and the distance between the two slits is 2.4 mm. If a thin transparent mica sheet of thickness 1 𝜇𝑚 𝑎𝑛𝑑 𝑅.𝐼. 1.5 is introduced between one of the interfering beams, the shift in the position of central bright fringe is