Question

light ray is incident normally on the boundary surface between two media.the angle of refraction will be

Answer 1

Angle of refraction of the light ray depends on the Angle of incidence (i) and the refractive indices (n) of the two media.

• For a light ray incident on the boundary surface between two media with angle of incidence 'i', the angle of refraction will be 'r'. The refractive index of the second media gives the extent of deviation of the light ray from its course.
• Snell's law gives the relation: $n_{1}$.sin i = $n_{2}$.sin r
• While traveling from a medium of lower refractive index '$n_{1}$' to a medium of higher '$n_{2}$', the deviation is farther away from the normal and vice versa.
• As the light ray is incident normally on the surface here, 'i' will be 0. Hence, even the angle of refraction 'r' will be 0.

Answer 2

Answer:Answer will be

Explanation: