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In a young's double slit experiment, two narrow vertical slits placed 0.800 mm apart are illuminated by the same source of yelow light of wavelength 589 nm. How far are the adjacent bright bands in the interference pattern observed on a screen 2.00 m away?
 



    Solution

    The correct option is

    Given That,  d=0.8mm=0.8×103m,λ=589nm=589×109mandd=2mSo,β=Dλd=589×109×20.8×103=1.47×103m=1.47mm
     

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