At night, a wet road shows clear reflections of street lamps. A dry road does not.
Which statement explains this?
The water layer is rough, so the light is scattered in many directions
The dry road is smooth, so the light is reflected back to the lamps
The dry road absorbs all of the light, so none of it is reflected
The water layer is smooth, so the light undergoes specular reflection
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.