A beam of light travels from air into a transparent glass block. The light refracts at the boundary because it travels at a lower speed in glass than in air. Which change takes place when the light travels from air into glass?
The frequency of the light decreases.
The frequency of the light increases.
The wavelength of the light decreases.
The wavelength of the light increases.
100 exam-style questions on CIE IGCSE Physics 3.2.2 Refraction of light. Each one has a worked solution and a mark scheme showing where the marks go.