Find the density of rulings for the grating

Reference no: EM13676160

Light of wavelength 420 nanometer is incident normally on a diffraction grating. The ninth-order maximum of the diffraction pattern is observed at 32.0^o.

(a) Find the density of rulings for the grating?

(b) Find the total number of primary maxima that can be observed in this situation.

Reference no: EM13676160

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