A swimming pool looks shallower than it really is when viewed from above the water.
Which statement explains this?
Light from the bottom slows down as it leaves the water and bends towards the normal
Light from the bottom speeds up as it leaves the water and bends towards the normal
Light from the bottom slows down as it leaves the water and bends away from the normal
Light from the bottom speeds up as it leaves the water and bends away from the normal
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.