Question

A student traces the path of a ray of light through a triangular glass prism for different values of angle of incidence. On analyzing the ray diagrams, which one of the following conclusions is he likely to draw?

(A) The emergent ray is parallel to the incident ray.

(B) The emergent ray bends at an angle to the direction of the incident ray.

(C) The emergent ray and the refracted ray are at right angles to each other.

(D) The emergent ray is perpendicular to the incident ray.

Answer 1

Incident ray and the emergent ray on passing through the prism follows the different path. On Refraction of a ray of light through the prism, the emergent ray always bends at an angle with the incident ray called angle of deviation.
so, correct statement should be "the emergent ray bends at an angle to the direction of the incident ray".
Hence, the correct option is $\left(B\right)$