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!

Question about light intensity and resistance

  1. Mar 22, 2007 #1
    1. The problem statement, all variables and given/known data
    For my physics coursework, I have to design a laboratory experiment using an LDR to investigate how intensity of light emitted from a lamp varies with wavelength. In the procedure I will use diffraction gratings to separate light into wavelengths. The problem I am having is "How a measure of light intensity can be obtained from the LDR" please can anybody show me how to obtain intensity from an LDR.

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 22, 2007 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Do you know how a typical LDR works? Do you have the spec sheet for the LDR you are using (something like this) ?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Question about light intensity and resistance