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A diffraction grating has 5000 rulings per centimeter. It is used to observe the light of...

A diffraction grating has 5000 rulings per centimeter. It is used to observe the light of wavelength 546.08 nm.

1) At what angle does the m = 2 maximum occur?

2) What is the highest order maximum observed and at what angle does it occur?

3) If this wavelength has to be resolved from a wavelength of 546.06 nm, what is the minimum chromatic resolving power required?

4) If the two wavelengths are to be resolved in the m = 2 order, what is the minimum width of the grating?

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