Light of wavelength 530 nm is incident normally on a


Light of wavelength 530 nm is incident normally on a diffraction grating. Two adjacent maxima occur at angles given by sinθ = 0.2 and sinθ = 0.3, respectively. The fourth-order maxima are missing.

(a) What is the separation between adjacent slits?

____ m

(b) What is the smallest slit width this grating can have?

____ m

(c) For that slit width, what are the largest, second largest, and third largest values of the order number m of the maxima produced by the grating?

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Physics: Light of wavelength 530 nm is incident normally on a
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