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A screen is placed 50 cm from a single s...

A screen is placed `50 cm` from a single slit, which is illuminated with `6000 Å` light. If the distance between the first and third minima in the diffraction pattern is `3.00 mm`, what is the width of the slit ?

A

0.1 mm

B

0.2 mm

C

0.3 mm

D

0.4 mm

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The correct Answer is:
B
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