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A diffraction grating with 67 slits per centimeter is used to measure the wavelengths emitted by...

A diffraction grating with 67 slits per centimeter is used to measure the wavelengths emitted by hydrogen gas. At what angles in the third-order spectrum would you expect to find the two violet lines of wavelength 434 nm and of wavelength 410 nm? (angles in radians) The 434 nm line: The 410 nm line:

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