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

question 6

Multiple Choice

A single slit forms a diffraction pattern,with the first minimum at an angle of 40.0° from central maximum,when monochromatic light of 630-nm wavelength is used.The same slit,illuminated by a new monochromatic light source,produces a diffraction pattern with the second minimum at a 60.0° angle from the central maximum.What is the wavelength of this new light?

• A) 425 nm
• B) 450 nm
• C) 475 nm
• D) 500 nm
• E) 525 nm

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