Explain the difference between a real image and a virtual image in terms of light rays.
An object of height 3.0 cm is placed at a distance of 30 cm in front of a thin converging lens of focal length 10 cm. Calculate the distance of the image from the lens.
Calculate the height of the image and state whether it is upright or inverted.
The distance between the object and the lens is increased. Describe the direction of change in: 1. the distance of the image from the lens, 2. the size of the image.
216 exam-style questions on CIE IGCSE Physics 3.2 Light, covering 3.2.1a Reflection of light, 3.2.1b Images in a plane mirror, 3.2.2 Refraction of light, 3.2.2a Refraction of light, 3.2.2b Total internal reflection, 3.2.2c Refractive index and critical angle, 3.2.2d Optical fibres, 3.2.3a Converging and diverging lenses, 3.2.3b Ray diagrams and the nature of images, 3.2.3c Virtual images and the magnifying glass, 3.2.3d Correcting long-sightedness and short-sightedness, and 3.2.4 Dispersion of light. Each one has a worked solution and a mark scheme showing where the marks go.