k transparent slabs are arranged one over another. The refractive indices of the slabs a
Channel: Doubtnut
Date: 2020-06-28

k transparent slabs are arranged one over another. The refractive indices of the slabs are gâ€ž ...Ilk and the thicknesses are `t_1, t_2, t_3............., t_k` . An object is seen through this combination with nearly perpendicular light. Find the equivalent refractive index of the system which will allow the image to be formed at the same place.