Question

Problem Scenario: A visit to the eye doctor! It is the time of the year when your family makes the annual visit to the eye doctor. In preparation you and your parents are writing down the specific issues you are facing with your eyes. None of you currently wear glasses. One of your parents says that they have been having trouble lately reading the newspaper. They can only see the newspaper clearly when it is at least dn = 50 cm from their eyes. But, they can comfortably see cars that are quite far away on the road. Your other parent says that they are also having trouble reading the newspaper and can read it if it is a similar distance dn = 50 cm away. However, they are also having trouble watching farther out: they can only clearly see stuff that is at most df = 2 m away. You say that you have not had trouble reading anything close to your eyes (about 25 cm away) but you are having trouble watching out for cars that are farther than df = 2 m away. You being the physicist in the family decide to follow the scientific method and figure out what type of lenses your optometrist would prescribe. You ask your parents whether they have a preference for glasses or contact lenses. You figure out the following preferences for your family: • You prefer contact lenses • Parent 1 (can not see close by, but can see far away) say that they prefer glasses that must must be placed d, = 2 cm from their eyes • Parent 2 can not see near or far) also wants glasses which must must be placed dy = 2 cm from their eyes With the above information you set out to find the power of each lens your eye doctor will probably) prescribe.

With the scenario: answer the following questions bellow

Your final report MUST include discussions of and answers to the following questions: 1). A clear ray diagram for each part of the scenario: you, parent 1, parent 2; eye only, eye + corrective lens, corrective lens only. Clearly mark the position of the object and the image. 2). Predict the power of each corrective lens required to fix the problem for you, parent 1, parent 2.

Answer 1