REMIDIAL OF FIRST DAILY TEST

1. A converging lens has a focal length of 20 cm. Determine its lens power!
2. A magnifying glass is used to observe object with minimally accommodating eyes. If
the near point of the eyes is 25 cm and the focal length of the magnifying glass
is 5 cm. Calculate the image magnification result!
3. A myopia patient has a far point of 2 m. What is the lens power to help him seeing
distant object clearly as normal people do?
4. A microscope has an objective lens with 0,8 cm focal length and an ocular lens
with 5 cm focal length. An object is placed 1 cm in front of objective lens.
Calculate the image magnification for non accommodating eyes!