Recent content by bfrank

Ah, finally got it! I knew I had to use some trig identity, but I couldn't figure out what. Thank you so much!

I actually had that missing L in my work, that was just a typo on here, sorry about that! I went through the work for the way you suggested (which was much easier than the way I did it, haha), but still got the same answer I got before (m = 3). Any other suggestions? I still think it's because...

Homework Statement A diffraction grating has 4,200 rulings/cm. On a screen 2.00 m from the grating, it is found that for a particular order m, the maximum corresponding to two closely spaced wavelengths of sodium (589.0 nm and 589.6 nm) are separated by 1.54 mm. Determine the value of m...