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!

Double Slit Interference and linear distance

  1. Apr 29, 2009 #1
    1. The problem statement, all variables and given/known data
    In a double-slit interference experiment, the wavelength is 579 nm, the slit separation is 0.12 mm, and the screen is 30.0 cm away from the slits. What is the linear distance between adjacent maxima on the screen? [Hint: Assume the small angle approximation is justified and then check the validity of your assumption once you know the value of the separation between adjacent maxima.]



    2. Relevant equations


    where
    λ is the wavelength of the light,
    d is the separation of the slits, the distance between A and B in the diagram to the right
    n is the order of maximum observed (central maximum is n=0),
    x is the distance between the bands of light and the central maximum (also called fringe distance), and
    L is the distance from the slits to the screen centerpoint

    3. The attempt at a solution

    Again I'm completely lost, some hints on how to start would be great
     
  2. jcsd
  3. Apr 30, 2009 #2

    rl.bhat

    User Avatar
    Homework Helper

    Write down the equation for xn, linear distance of the nth bright fringe from central maximum and similarly for x(n-1) of (n-1)th bright fringe. The difference between these will be the required result.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Double Slit Interference and linear distance
Loading...