A student performs a multiple-slit interference experiment. A coherent light source illuminates multiple slits in a barrier, and the resulting interference pattern is projected on a screen that is separated from the barrier by 2.2 m. The uniform spacing between the slits is 5.0μm5.0μm. A light sensor is used to measure the intensity of the light at the screen, and the student makes the following graph of the intensity as a function of the position along the screen as measured from the center of the central maximum. What is the wavelength, in nm, of the light source?

A student performs a multiple-slit interference experiment. A coherent light source illuminates multiple slits in a barrier, and the resulting interference pattern is projected on a screen that is separated from the barrier by 2.2 m. The uniform spacing between the slits is 5.0μm5.0μm. A light sensor is used to measure the intensity of the light at the screen, and the student makes the following graph of the intensity as a function of the position along the screen as measured from the center of the central maximum. What is the wavelength, in nm, of the light source?

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