Question: (3 marks)A diffraction grating has 700slits/cm. When blue light (A = 480 nm) is directed through the grating, what will be the separation of

$(3 marks)A diffraction grating has 700slits/cm. When blue light (A = 480$

(3 marks)A diffraction grating has 700slits/cm. When blue light (A = 480 nm) is directed through the grating, what will be the separation of the dark fringes on a screen 4.00 m away?

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