Physics · Unit 2 · Waves · Wave properties
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A ray of light travelling through air enters a glass block at an angle of incidence of 40°. The angle of refraction is measured to be 25°. What key feature of the wave model explains why the light ray bends toward the normal?
A ray of light travels from air into water. What happens to the wavelength and speed of the light as it enters the water?
A ray of white light passes from air into a glass prism. The emerging light separates into a spectrum of colours, with violet light bending more than red light. Which explanation best accounts for this observation using the wave model of light?