A Single Slit Forms a Diffraction Pattern,with the First Minimum

question 4

Multiple Choice

A single slit forms a diffraction pattern,with the first minimum at an angle of 40.0° from central maximum,using monochromatic light of 490-nm wavelength.What is the width of the slit?

• A) 762 nm
• B) 731 nm
• C) 700 nm
• D) 668 nm
• E) 637 nm

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