1. Limited time only! Sign up for a free 30min personal 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!

The interference of light and diffraction

  1. May 20, 2015 #1
    1. The problem statement, all variables and given/known data
    https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xft1/v/t1.0-9/11161364_10206082495958864_2429387894279713850_n.jpg?oh=40982e4e4e7647918991060b6f630acc&oe=55C1808A&__gda__=1439347320_8abd4b5ce66baee04bbc345aef15ec68
    In terms of the wavelength of the light λ, what is the value for the path difference x = r1 – r2 if at the point P on the screen there is:

    a. a dark region (and no other dark region between O and P)?

    b. a bright region, with one other bright region between O and P?

    2. Relevant equations
    x = Δr = d sinƟ

    3. The attempt at a solution
    I don't understand this at all? could someone give me a pointer to begin with please, thanks!
     
  2. jcsd
  3. May 20, 2015 #2
    update:
    okay i think for part B, Δr= 2λ ? could someone confirm if this is correct or incorrect?? thanks!
     
  4. May 20, 2015 #3

    SammyS

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Gold Member

    Yes.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: The interference of light and diffraction
Loading...