Question

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?

Answer #1

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Exact answers with detail please

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