16-3-lenses_summary

This section focuses on the properties and applications of lenses in optics. Lenses are used in various optical devices such as cameras, magnifying glasses, eye glasses, and microscopes. Key concepts covered include: * Image formation and magnification through convex and concave lenses using ray diagrams * The human eye's function in terms of geometric optics * Calculation of image and object distances, focal length, and image magnification using the thin-lens equation * The concepts of real, virtual, upright, and inverted images * The power of a lens and its relationship to the focal length * Aberrations caused by real lenses due to size, material, thickness, and object position * Common applications of lenses such as telescopes, microscopes, and the human eye The section concludes with lab activities to explore the focal length of lenses and the human eye's functioning in terms of geometric optics.