A narrow slit of width 1 mm is illuminated by monochromatic light of wavelength 600 nm. The distance between the first minima on either side on a screen at a distance of 2 m is –
Text Solution
Verified by ExpertsThe correct answer is:
D
For first dark fringe on either side,
There fore, dis 
ce between two dark fringes on either side 
Substituting the values, we have dis 
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