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!

Diffraction and Resolving

  1. Aug 18, 2011 #1
    Hi,

    Going through a Physics problem in class today my teacher stated that we could only resolve if: θ = λ/b. Why? Is it because when that does not follow, there is no "black spot", therefore that light source can merge with another one?

    Thanks,
    Peter
     
  2. jcsd
  3. Aug 18, 2011 #2

    PeterO

    User Avatar
    Homework Helper

    If you were to stand in the surf, there would not be small 60cm region of calmness on the shore. If you build a 50m "break water" , you do create a calm section at the beach. The problem is that your size was much smaller than the wavelength so the seas just diffracts around you as if you are not there.
    If the light diffracts around a very small object, there will be no later evidence that an object was there -you can't see it.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Diffraction and Resolving
  1. Resolving Forces (Replies: 11)

  2. Resolving components (Replies: 15)

Loading...