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In a biprism experiment, the distance be...

In a biprism experiment, the distance between the consecutive bright bands is 0.32 mm, when red light of wavelength 6400 Å is used. By how much would the band width change, if blue light of wavelenth 4800 Å is used, with the same setting?

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The correct Answer is:
Change in distance x = 0.06 mm
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