9 Light with wavelength 2 illuminates two slits tha are separated by a distance D each slit has width a The separation of the

Question

9 Light with wavelength 2 illuminates two slits tha are separated by a distance D each slit has width a The separation of the interference fringes on a screen at distance d away is J5 20 d 1 3 20 21 AD 4

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