Question

In an experiment to trace the path of a ray of light through a glass prism for different values of angle of incidence a student would find that the emergent ray: (1)
(A) is parallel to the incident ray
(B) perpendicular to the incident ray
(C) is parallel to the refracted ray
(D) bends at an angle to the direction of incident ray

Answer 1

Answer:

D) As the light gets refracted two times at different angles, the emergent ray bends at an angle to the direction of incident ray

Answer 2

(D) bends at an angle to the direction of incident ray

Explanation:

When a ray of light passes from medium to another, it gets bent. This is called refraction and it occurs due to the difference in density of the two mediums. The angle of refraction depends on the medium.  

Prism is a homogeneous, transparent, refracting material (such as glass) enclosed by two inclined plane refracting surfaces at some fixed angle called refracting angle or angle of the prism. When a ray of light falls on prism, it gets refracted. The light that lands on the prism is called the incident ray and the ray that comes out of the other plane of the prism is called the emergent ray. The angle between the incident ray and the emergent ray is called the angle of deviation.