Recent content by AardeeHar

  1. A

    Finding order of diffraction given angle and wavelength

    Oh, I see! I didn't realize that. Thank you so much, now I understand.
  2. A

    Finding order of diffraction given angle and wavelength

    Okay, I believe I understand what you are saying. Since this is my "first" measurement (which it is), it must be order one. That makes sense. I have six remaining measurements (7 total). How can one determine where order "one" ends, and order "two" begins? I very much appreciate your help by the...
  3. A

    Finding order of diffraction given angle and wavelength

    It was part of a lab. So, all these are "real world" values. The only other information I can see that may be relevant is that the light (we were looking at Helium in a spectrometer) became dimmer as we moved through each individual sample. Beyond that, I don't really have much else to work with.
  4. A

    Finding order of diffraction given angle and wavelength

    Sorry, that was my mistake with the name of the greek letter. I've changed it in the original question.
  5. A

    Finding order of diffraction given angle and wavelength

    I'm sorry, I'm not exactly sure what you mean. The central angle is 180 degrees.
  6. A

    Finding order of diffraction given angle and wavelength

    Homework Statement Calculate the grating constant, d, given that theta = 172.01167 degrees, and that lambda = 447.2 nanometers. 2. Homework Equations d = mλ / sinθ where m is an integer that refers to the order of diffraction where λ is the wavelength where d is the spacing between two slits...