: Biprism experiment is conducted with a wavelength of 5000 Å. The distance between the virtual sources is 0.2 mm and the micrometer eyepiece is at a distance of 100 cm from the slits. The distance between the consecutive bright and dark band is (a) (c) 1.25 mm 3.5 mm (b) 2.5 mm (d) 0.25 mm
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