The image of a cell is 20 mm long. The actual length of the cell is 0.1 mm.
What is the magnification of the image?
×2\times 2×2
×20\times 20×20
×200\times 200×200
×2000\times 2000×2000
130 exam-style questions on OCR GCSE Biology 1.1 Cell structures, covering 1.1.1 Viewing cells with light microscopes, 1.1.2 Sub-cellular structures and functions, and 1.1.3 Electron microscopy and resolution. Each one has a worked solution and a mark scheme showing where the marks go.