A plate of thickness t made of a material of refractive

Last updated: 6/30/2023

A plate of thickness t made of a material of refractive index u is placed in front of one of the slits in a double slit experiment a Find the change in the optical path due to introduction of the plate b What should be the minimum thickness t which will make the intensity at the centre of the fringe pattern zero Wavelength of the light used is 2 Neglect any absorption of light in the plate