physics f4 - chap 6.3 image formation by lenses

6.3.1 Identify convex lenses as converging lenses and concave lenses as diverging lenses 6.3.2 Estimate focal length for a convex lens using distant object. 6.3.3 Determine the position and features of images formed by : (i) convex lens (ii) concave lens 6.3.4 Explain linear magnification, m as: m = v/u