Question: Diffraction gratings used in astronomical instruments must be able to separate wavelengths that are quite close together. (a) To increase the ability to do this,

Diffraction gratings used in astronomical instruments must be able to separate wavelengths that are quite close together.

(a) To increase the ability to do this, should the separation between slits be made less or greater?

(b) Does the width of the slits affect the diffraction pattern?

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