EXERCISE 1 An object and an image are displayed on either side of a lens. Copy the figure to your sheet.

A) Calculate the focal length using the lenses formula.
B) Determine where the focal length should be, using the light construction beams.
C) Draw the light beam that illuminates the entire lens from point B. Draw how it continues after the lens.
D) Measure the focal length, object distance and image distance and write it down as shown in the figure under the graph paper.