An art conservator uses a high-magnification lens to inspect a fine detail in a Renaissance painting. Under a convex lens producing a linear magnification of 6.5, the image of a crack on the paint layer has a width of 14.3 mm.
Calculate the actual width of the crack.
29 exam-style questions on AQA GCSE Physics 6.2 Electromagnetic waves, covering 6.2.1 Types of electromagnetic waves, 6.2.2 Properties of electromagnetic waves 1, 6.2.3 Properties of electromagnetic waves 2, 6.2.4 Uses and applications of electromagnetic waves, 6.2.5 Lenses, and 6.2.6 Visible light. Each one has a worked solution and a mark scheme showing where the marks go.