A grating has 350 rulingsmm and is illuminated at normal


A grating has 350 rulings/mm and is illuminated at normal incidence by white light. A spectrum is formed on a screen 30cm from the grating. If a hole 10mm square hole is cut in the screen, its inner edge being 50mm from the central maximum, what range of wavelength passes throught the hole?

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Physics: A grating has 350 rulingsmm and is illuminated at normal
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