A ray of light travels from air into a glass block along the normal.
What happens to the ray as it enters the glass?
It bends towards the normal as it enters the glass
It bends away from the normal as it enters the glass
It continues into the glass without changing direction
It is reflected back along the normal into the air
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.