A Round 085-Mm-Diameter Hole Is Illuminated by Infrared Light of Wavelength 2

question 56

Multiple Choice

A round 0.85-mm-diameter hole is illuminated by infrared light of wavelength 2.5 μm What is the angle of the first dark fringe in the resulting pattern?

• A)0.21 degrees
• B)3.6 × 10^-3 _degrees
• C)1.2 × 10^-2 _degrees
• D)4.8 × 10^-2 _degrees

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