Section-C: Comprehension Type
In YDSE’s experiment performed in a medium of refractive index (4/3), a light of 60 nm wavelength is falling on the slits having 0.45 mm separation. The lower slit S2 is covered by a thin glass sheet of thickness 10.4 μm and refractive index 1.5. The interference pattern is observed on a screen placed 1.5m from the slits as shown in the fig, Ignore dispersion.
Find the light intensity of point O relative to maximum fringe intensity.