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Hydrogen Balmer Series

PHY370

Lab PDF

Students treat the Sodium emission doublet viewed through a grating spectroscope as known wavelengths and measure diffraction angles as precisely as possible in order to solve the diffraction equation for the grating spacing. Hydrogen spectral angles are then carefully measured and used along with the grating spacing to calculate the hydrogen spectral wavelengths.




Equipment

Name Location Quantity
Light Sources JE-105A-D29 1 per room
Spectral Tube Power Supply JE-105A-S145 1 per room
Spectral Tubes, Hydrogen JE-105A-S145 1 per room
Spectrometer JE-113A-DS69-259 1 per room
0 per room


Notes

Cenco Sodium Vapor Light Source catalog #31205 Gaertner-Peck Spectrometer High-Voltage fixture with Hydrogen tube. Opaque, fire-resistant cloth Small desk lamp Control of room lighting.



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Item modified on 2014-01-29 11:33:16 by dahlbergk1.