- #1
LCSphysicist
- 646
- 162
- Homework Statement
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- Relevant Equations
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A spectral line of wavelength λ = 4,750˚A is actually
a doublet, of separation between the lanes 0, 043˚A . a) which is the smallest
number of lines a diffraction grating needs to have to separate
this doublet in the 2nd order spectrum?
To be honest, i don't know what to do. I first thought that it could have something to do with the Raylegh criterion, but even, so ##sin \theta \approx \lambda / D##, and i don't know what would substitute D here. I know it is necessary to show the progress made by the person that made the question, but i would appreciate any tips to realize how to start. Of course, the equation of maximum is ##d sin \theta ' = m \lambda##.
a doublet, of separation between the lanes 0, 043˚A . a) which is the smallest
number of lines a diffraction grating needs to have to separate
this doublet in the 2nd order spectrum?
To be honest, i don't know what to do. I first thought that it could have something to do with the Raylegh criterion, but even, so ##sin \theta \approx \lambda / D##, and i don't know what would substitute D here. I know it is necessary to show the progress made by the person that made the question, but i would appreciate any tips to realize how to start. Of course, the equation of maximum is ##d sin \theta ' = m \lambda##.