A light ray travelling in glass strikes the surface at an angle $c$. Angle $c$ is the critical angle. Which diagram shows the effect on the light?
Physics 5054 · O Level · Refraction of light
Physics 5054 · O Level · Refraction of light
A light ray travelling in glass strikes the surface at an angle $c$. Angle $c$ is the critical angle. Which diagram shows the effect on the light?