A person is long-sighted. Light from a near object is focused behind the retina.
Which lens corrects this, and how?
A concave lens, so the rays diverge and focus further forward
A convex lens, so the rays converge and focus further forward
A concave lens, so the rays converge and focus further back
A convex lens, so the rays diverge and focus further back
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.