A person is short-sighted. They can see near objects clearly, but distant objects look blurred.
In their eye, rays of light from a distant object are brought to a focus in front of the retina.
Name the type of lens used in glasses to correct short sight.
Explain how this lens corrects short sight.
Another person is long-sighted. In their eye, rays of light from a near object are brought to a focus behind the retina.
State the type of lens needed to correct long sight. Explain how it corrects long sight.
State one similarity between the way convex lenses and concave lenses affect rays of light.
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.