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Lab Prep - Optics

There is no assignment due before 11 AM, Wednesday, November 30th, 2011.



Please select your lab section
Wednesday 1:00-2:50 PM
Thursday 2:00-3:50 PM
Friday 2:00-3:50 PM
Please type your LAST name and first initial (example: Gavrin, A):

The following three questions refer to the material you were to read in preparation to the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button at the bottom of this page.



1.

You want to use a lens with a focal length of 20 cm to produce an image on a screen 30 cm away. where should you put the object?

2.


In question 1, above, we used a converging lens. Is it possible to do the same thing with a diverging lens? Please explain how (if possible) or why not (if impossible).





3.

When an object is placed 20 cm from a converging lens with a focal length of 10 cm, the image is

real and inverted

real and erect

virtual and inverted

virtual and erect




Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.):




You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.