A ray of light travels from glass into air. Light travels faster in air than in glass. Which row describes the ray as it leaves the glass?
It changes direction away from the normal, and its velocity increases.
It changes direction away from the normal, and its velocity decreases.
It changes direction towards the normal, and its velocity increases.
It changes direction towards the normal, and its velocity decreases.
40 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.