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: Symbol help - Mirrors & units question

  1. Apr 30, 2014 #1
    Symbol help -- Mirrors & units question

    Calculate to the nearest 0.1000 degree the diffraction angle of the first order image produced by monochromatic light of wavelength 5890.0 A as the light passes through a grating of 5500.0 lines/cm.


    My guess was 1^-10 but i can't find it on google.

    So would it be 589nm?

  2. jcsd
  3. Apr 30, 2014 #2


    User Avatar

    Staff: Mentor

    It's probably the symbol for Angstroms: http://en.wikipedia.org/wiki/Angstrom

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted