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Helium-Neon Laser Light (λ = 632

Question 9

Multiple Choice

Helium-neon laser light (λ = 632.8 nm) is sent through a single slit of width 0.56 mm.What is the width of the central maximum on a screen 1.5 m in back of the slit? (1 nm = 10−9 m)


A) 1.7 mm
B) 0.8 mm
C) 3.4 mm
D) 2.5 mm
E) ​5.1 mm

Correct Answer:

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