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!

Homework Help: I am in need of a formula. (visible wavelength, thin film)

  1. Mar 31, 2008 #1

    If anyone could help me out it would be greatly appreciated.

    2nt = (m[+.5])[tex]\lambda[/tex]
    Last edited: Apr 1, 2008
  2. jcsd
  3. Mar 31, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    What's the problem? You seem to have the right equation on hand.
  4. Mar 31, 2008 #3
    o yea sorry, the further question was;

    what would I use for m to achieve the minimum index? 1?

    As well, would I use the [+.5] or not, meaning destructive vs constructive.

    Those 2 were my detailed questions.
  5. Mar 31, 2008 #4
  6. Mar 31, 2008 #5
    M would have to be the smallest possible integer without the right-hand-side being less than or equal to 0.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook