A ray of light travels from glass into air along the normal.
Which statement is correct?
Speed and wavelength increase; the direction does not change
Speed and wavelength increase; it bends away from the normal
Speed and wavelength stay the same; the direction does not change
Speed and wavelength decrease; the direction does not change
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.