In a Two-Slit Experiment Using Coherent Light,the Distance Between the Slits

question 94

Multiple Choice

In a two-slit experiment using coherent light,the distance between the slits and the screen is 1.10 m,and the distance between the slits is 0.0400 mm.If the second order bright fringe is measured to be 4.20 cm from the centerline on the screen,what is the wavelength of light?

• A)200 nm
• B)381 nm
• C)401 nm
• D)620 nm
• E)763 nm

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