A grating has 600 rulings per mm and is 60 mm widea what is, Ask an Expert

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A grating has 600 rulings per mm and is 6.0 mm wide.

a) What is the smallest wavelenght interval that can be resolved in the third order at ? = 500 nm?
b) How many orders can be seen? Assum normal incidence of light on the grting throughout.

Note) PLEASE GIVE ALL DETAILS OF SOLUTION

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