Two parallel slits 0.6 mm apart are illuminated by light source of wavelength 6000 Å. The distance between two consecutive dark fringes on a screen 1 m away from the slits is
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a
1 mm
b
0.01 mm
c
0.1 m
d
10 m
answer is A.
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Detailed Solution
Distance between two consecutive dark fringes λDd=6000×10−10×10.6×10−3=1 × 10−3 m=1 mm