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Q .     A narrow slit of width 1 mm is illuminated by monochromatic light of wavelength `600` nm. Distance between the first minima on either side of a screen at a distance of `2` m is

JEE 1994
A

`2.4` cm

B

`1.2`cm

C

`2.4` cm

D

`1.24 ` cm

HINT

For first dark fringe on either side `d sin θ = λ`
0
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