Question

A rainbow is formed when a ray of sunlight passesthrough a spherical raindrop. Then the total angle throughwhich the ray deviates is (i and r denote the angles ofincidence and of the refraction respectively)

(a) 2i- +4i
(b) pi 2i - 41
(c) 2(i-r)
(d) 2( pi +i - 2r)

Answer 1

The total angle through which the ray deviates when a ray of sunlight passes through a spherical raindrop is determined by the difference between the angle of incidence and the angle of refraction.

Step-by-step explanation:

The total angle through which the ray deviates when a ray of sunlight passes through a spherical raindrop can be determined using the concept of refraction.

When light enters a raindrop, it is refracted and dispersed into its component colors, resulting in a rainbow. The angle of deviation, represented by 2(i-r), is equal to twice the difference between the angle of incidence (i) and the angle of refraction (r).