A) 1.2 mm
B) 1.2 cm
C) 2.4 cm
D) 2.4 mm
Correct Answer: D
Solution :
Distance between the first dark fringes on either side of central maxima = width of central maxima = \[\frac{2\lambda D}{d}\]= \[\frac{2\times 600\times {{10}^{-9}}\times 2}{1\times {{10}^{-3}}}\] = 2.4 mm.You need to login to perform this action.
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