Two Slits in an Opaque Barrier Each Have a Width

question 63

Multiple Choice

Two slits in an opaque barrier each have a width of 0.020 mm and are separated by 0.050 mm.When coherent monochromatic light passes through the slits the number of interference maxima within the central diffraction maximum:

• A)is 1
• B)is 2
• C)is 4
• D)is 5
• E)cannot be determined unless the wavelength is given

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