A ray of light is incident on a parallel slab of thickness t and refractive index n. If the angle of incidence `theta` is small,

A ray of light is incident on a parallel slab of thickness t and refractive index n. If the angle of incidence `theta` is small, than the lateral displacement in the incident and emergent ray will be
A. `(t theta(n-1))/(n)`
B. `(t theta)/(n)`
C. `(t thetan)/(n-1)`
D. none of these

A ray of light is incident on a parallel slab of thickness t and refractive index n. If the angle of incidence `theta` is small, than the lateral disp

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