if light of a wavelength 5×10^_imagines on a pair of slits one meter apart, how far from the central maximum will the first bright band appear on a screen 1m away?
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4×lambda D/d =ie equal to four fringe width
=4x 1 x 5×10^-7/1×10^-3
=2×10^-3m
=4x 1 x 5×10^-7/1×10^-3
=2×10^-3m
am I right
ok is answer right
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