A beam of light passes from air to water at an incident angle of 40°,relative to a plane perpendicular to the boundary between the two.At what angle will it emerge into the water,relative to a plane perpendicular to the boundary?

Question

Quizplus · Accepted Answer

When light passes from a less dense medium (air) to a denser medium (water), it bends towards the normal. Therefore, the angle of refraction in water will be less than the angle of incidence in air.

A Beam of Light Passes from Air to Water at an Incident