Lenses – Short Introduction (Class 8 ICSE)The chapter "Lenses" introduces students to the types and properties of lenses and how they refract light to form images. It covers convex and concave lenses, image formation, principal focus, focal length, and the uses of lenses in everyday life. Students also learn about the applications of lenses in optical instruments such as cameras, microscopes, telescopes, and spectacles.This introduction is concise, SEO-friendly, and suitable for a website chapter overview.