A bathroom has a mirror on one wall. The other walls are painted green.
Name the type of reflection that happens at the surface of the mirror.
A person can see a clear image of themselves in the mirror, but not in the painted wall.
Explain why.
Describe what happens to the different colours of white light when they hit the green wall.
The bathroom light is replaced with a lamp that gives out only red light.
State the colour the green wall now appears. Give a reason for your answer.
51 exam-style questions on OCR GCSE Physics 5.3 Wave interactions, covering 5.3.1 Wavelength and how substances affect waves, 5.3.2 Wave velocity in different substances, 5.3.3 Convex and concave lenses, 5.3.4 Ray diagrams for reflection and refraction, and 5.3.5 Colour, absorption and reflection. Each one has a worked solution and a mark scheme showing where the marks go.