1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Lenses PLEASE HELP

  1. Feb 25, 2010 #1
    1. The problem statement, all variables and given/known data


    Calculate a value for fD (the focal length of the diverging lens). Would this experiment be possible if fC > |fD|?

    2. Relevant equations

    Fcombo= (dodi)/(do+di)= (25*46)/(25+46) = 16.2 cm

    1 - 1 = 1 fD= -24.83 cm
    16.2 9.8 fD


    Fcombo= (dodi)/(do+di)= (23*48)/(23+48) = 15.5 cm

    1 - 1 = 1 fD= -26.69 cm
    15.5 9.8 fD


    3. The attempt at a solution

    This experiment would not work if fC > |fD| because there would be no image produced on the screen, which would not be able to be measured to give us a di; we would be left with no way to calculate a Fcombo or a fD.



    What is a better way to explain what happens? PLEASE HELP
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Lenses PLEASE HELP
Loading...