b) A certain grating has 10ʻ slits with a spacing of d=2.1um. It is illuminated with yellow sodium light (a=589 nm). Find the angular width of the fourth-order maximum.

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b) A certain grating has 10" slits with a spacing of d=2.1µm. It is illuminated with
yellow sodium light (=589 nm). Find the angular width of the fourth-order
maximum.
Transcribed Image Text:b) A certain grating has 10" slits with a spacing of d=2.1µm. It is illuminated with yellow sodium light (=589 nm). Find the angular width of the fourth-order maximum.
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