Which statement correctly describes the properties or behavior of light passing through a thin converging lens?
A ray of light passing through the optical center of the lens continues in a straight line with negligible deviation.
The focal length of the lens is the distance from the principal focus to the position where the image is formed.
All light rays incident on the lens must pass through the principal focus after refraction.
The optical center of the lens is the point where all rays parallel to the principal axis converge.
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.