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Problem 38.6: Number of slits per millimeter in diffraction grating

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This animation models a diffraction grating that is a series of parallel slits in a material. As you change the wavelength, notice where the bright spots are. You can move the protractor around to measure angles (position is given in centimeters and angle is given in degrees). Restart. How many slits per millimeter does the diffraction grating have?

Problem authored by Anne J. Cox.
Script authored by Anne J. Cox and Morten Brydensholt.

Physlets were developed at Davidson College and converted from Java to JavaScript using the SwingJS system developed at St. Olaf College.

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