40 In the figure shown in YDSE a parallel beam of light is

Last updated: 6/21/2023

40 In the figure shown in YDSE a parallel beam of light is incident on the slit from a medium of refractive index n The wavelength of light in this medium is 2 A transparent slab of thickness t and refractive index n is put infront of one slit The medium between the screen and the plane of the slits is n The phase difference between the light waves reaching point O symmetrical relative to the slits is n 2 V A n3 n t n 2 3 n n C t B D 2 2 n n t 2in 2 n n t 7 l n