Converging Lens

Practice Problems



An object 4 cm tall is placed in front of a symmetrical converging lens has a focal length of 10 cm.

For each situation below, locate and describe the image (type, orientation, size, and location) using a ray diagram and the lens equations if the object is placed:

  1. 40 cm from the lens.
  2. 30 cm from the lens.
  3. 20 cm from the lens
  4. 15 cm from the lens
  5. 5 cm from the lens

Solutions



last update November 2, 1999 by JL Stanbrough