Draw a ray diagram for each to locate the image using convex mirrors. State the characteristics (LOST).

Draw a principal axis through a convex lens. Label both items clearly. Label 2 focal points located 2.50 cm on each side of the lens. Draw and label a 1.0 cm-tall upright arrow sitting on the principal axis as object 6.00 cm from the lens. Construct two rays from the object, refracting correctly through the center of the lens. Draw and label the image formed.

Which of the following changes would increase the focal length of a lens? O increase index of refraction of lens material. O increase radius of curvature of surface. O decrease radius of curvature of surface. use red colored lens material.

2. A convex lens with focal length f formed an image of the object is shown in the diagram below Object 10 cm 15 cm F, F2 Image F1 and F2 are the focus points of the lens. What is the focal length, fof the lens? А. 11.2 cm С. 12.2 ст В. 11.8 сm D. 14.5 cm

A candle, 10 cm tall, stands 50 cm from a diverging lens wvhose focal length is 20 cm.a.Find the location of the image.b.Find the magnification of the image.c.Describe (real virtual/upright/inverted) d.Find the height of the image e.Draw ray diagrams to obtain the image characteristics

Choose true or false for each statement regarding the sign conventions for mirrors.  a)  Virtual images appear appear behind a mirror and have a negative value for the image distance.   b) The focal length f is positive for convex mirrors.  c)Real images appear in front of a mirror and have a negative value for the image distance.