A red filter is placed in front of a lamp that gives out white light.
Which statement describes the light that passes through the filter?
Only red light, because the filter adds red to the white light
All colours except red, because the filter absorbs red light
White light, because the filter only reflects a little red light
Only red light, because the filter absorbs all the other colours
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.