Question

how does the lateral displacement of a ray light passing through a parallel glass slab vary with the 1) decrease in angle of incidence
2) Increase in the thickness of medium
3) increase in optical density of medium​

Answer 1

Explanation:

Lateral displacement increases with increase in angle of incidence and also increases with increase in refractive index. since refractive index increases with decrease in wavelength, so does lateral displacement, i.e, lateral displacement is more for violet light than for red.