Chapter 11.pdf

D23 Skill Builder ActivityDrawing Ray Diagrams for Convex LensesConvex (Converging) Lenses1. Copy Figure 11.59(a) into your notebook To determine wherethe image of the top of the arrow will be, draw the first rayparallel to the principal axis until it strikes the lens and refractsthrough the focal point.objectF´FFigure 11.59(a) Draw thefirst ray.lens2. Draw the second ray from the tip of the arrow through theoptical centre of the lens (Figure 11.59(b)).FobjectF´Figure 11.59(b) Draw thesecond ray.3. Draw the real image where the rays appear to intersect.A real image is shown as a solid arrow (Figure 11.59(c)).objectF´FFigure 11.59(c) Drawthe real image.image4. Optional: You can add a third ray to check your work. Drawthe third ray travelling from the top of the arrow toward thesecondary focus on the far side of the lens. When this rayemerges from the lens, it travels parallel to the principal axis(Figure 11.59(d)).objectF´FFigure 11.59(d) Optional:Draw a third ray to checkyour work.image458 UNIT D Light and Geometric Optics