(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Light with two wavelengths (510.0 nm and 525.6 nm) is spread by a diffraction grating. On a screen 4 meters behind the grating we observe that the diffrence between the two second order maximum is 1 cm. What is the grating constant (d) ?

2. Relevant equations

I think i only need Snells Law for this problem, and some geometry.

3. The attempt at a solution

Im having som problem with the geometry of the solution. I need to find the distance to one of the maximums from the zero order maximum. Ive found the relations:

sin(a)=([tex]\lambda1[/tex]/[tex]\lambda2[/tex])*sin(b)

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# Homework Help: Separation of two wavelengths in a diffraction grating.

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