Which statement is correct for a ray of light passing between different media?
The frequency of a light wave increases when it passes from air into glass.
The refractive index of glass is equal to the speed of light in glass divided by the speed of light in a vacuum.
Total internal reflection can occur when light is incident on a boundary from a medium of lower refractive index to a medium of higher refractive index.
For a light ray passing from air into glass, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the refractive index of the glass.
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.