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A beam of light of lambda=600nm from a d...

A beam of light of `lambda=600nm` from a distance source falls on a single slit `1mm` wide and the resulting diffraction pattern is observed on a screen `2m` away. The distance between first dark fringes on either side of the central bright fringe is

A

1.2 cm

B

1.2 mm

C

2.4 cm

D

2.4 mm

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The correct Answer is:
D
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