A ray of light travels from air into a glass block. The ray meets the surface of the block at an angle to the normal. What happens to the ray as it enters the glass?
It travels back into the air along the same path.
It changes direction towards the normal.
It travels along the surface of the glass block.
It changes direction away from the normal.
93 exam-style questions on AQA GCSE Physics 6.2 Electromagnetic waves, covering 6.2.1 Types of electromagnetic waves, 6.2.2 Properties of electromagnetic waves 1, 6.2.3 Properties of electromagnetic waves 2, 6.2.4 Uses and applications of electromagnetic waves, 6.2.5 Lenses, and 6.2.6 Visible light. Each one has a worked solution and a mark scheme showing where the marks go.