Atomic Spectra

The atomic spectra of hydrogen, helium, and mercury are scanned by hand using a grating spectrophotometer that measures relative light intensity as a function of angle. From the resulting graph, the wavelengths of the spectral lines are determined by measuring the angle from the central maximum to each line. First and second order lines are examined. The spectrum of helium is used to calibrate the diffraction grating.

Grade Level: College

Subject: Physics

Student Files

	Atomic Spectra	1.44 MB
	Atomic Spectra Spectrophotometer Assembly	1.76 MB
	Atomic Spectra	1.64 MB
	Atomic Spectra	313.72 KB

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Atomic Spectra Experiment

The complete solution for measuring the wavelengths of the discrete lines of the atomic spectra of various gases using a grating spectrophotometer.

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Source Collection: Lab #01