Question

Through a narrow slit of width 2mm

Answer 1

Answer:

0.5mm

Explanation:

Here, a=2mm=2×10−3m

λ=500nm=500×10−9m=5×10−7m,D=1m

The distance between the first minima on either side on

a screen =2λDa=2×5×10−7×12×10−3

=5×10−4m=0.5×10−3m=0.5mm

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