When a light ray travels from medium 1 to 2, in which of the following cases it bends towards the normal?
Air to glass
Glass to water
Water to air
Glass to air
When a light ray travels from air to glass, where does it bend?
Light travels more quickly through water than through glass. (a) Which is optically denser : water or glass ? (b) If a ray of light passes from glass into water, which way will it bend : towards the normal or away from the normal ?
When a light ray passes from air into glass, what happens to its speed ? Draw a diagram to show which way the ray of light bends.
Light bends away from the normal when it travels from water to air.