A beam of monochromatic red light is incident on a glass triangular prism. Some of the light is reflected, and some enters the prism and emerges from the other side. What is observed about the light that passes through and emerges from the glass prism?
The light is dispersed into a band of different colours.
There is no reflection of light at the primary boundary.
The light is refracted, but no dispersion occurs.
The light changes its colour to violet upon entering the prism.
12 exam-style questions on CIE IGCSE Physics 3.2.4 Dispersion of light. Each one has a worked solution and a mark scheme showing where the marks go.