(adsbygoogle = window.adsbygoogle || []).push({}); # of diffraction orders seen???

1. The problem statement, all variables and given/known data

A 513 line/mm diffraction grating is illuminated by light of wavelength 567 nm. How many diffraction orders are seen?

2. Relevant equations

3. The attempt at a solution

d*sin theta = mt

t = wavelength

m = d*sin theta/t

I don't have the angle so I just omitted it assuming it would be very small and I did...

m = d/t = 3.4 so 3 diffraction orders

Is this correct?

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# Homework Help: # of diffraction orders seen?

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