Which statement about a diverging lens is not correct?
A ray of light parallel to the principal axis is refracted such that it appears to diverge from the principal focus.
A ray of light passing through the optical center of the lens is refracted through the principal focus on the opposite side.
The distance between the center of the lens and the principal focus is the focal length.
The lens is thinner in the middle than at the edges.
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.