lab 5 - Physics 134 Lab 5: Atomic Spectra Abstract: In lab...

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Physics 134 Lab 5: Atomic Spectra Abstract: In lab 5, we observed colors of light in various spectra. We observed the colors emitted from a white light bulb and also from the spectrum of the Hydrogen lamp. We found the wavelengths of the different colors using the Balmer series formula, and we also used this to then calculate frequency. The only light observed in this lab was visible light, whose wavelengths are between 400nm and 700nm. Questions: 1. Hydrogen Spectrum: Color A left A right Average λ experimental λ theoretical Violet .132 m .129m .1305 m 431nm 417nm Red .200m .199 m .1995 m 651nm 667nm Blue-green .148 m .147 m .1475 m 485 nm 487 nm 2. White Light Spectrum: Color A left A right Average λ experimental λ theoretical Violet .139 m .137 m .138 m 455 nm 417 nm Red .234 m .267 m .2505 m 808 nm 667 nm 3. We observed red light and some green light from the neon lamp, and violet light with some blue-green light from the mercury lamp. 4. We can calculate frequency using the equation f=c/λ. C is the speed of light, 3*10^8m/s. By
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This note was uploaded on 11/17/2011 for the course PHYSIC 133 taught by Professor Staff during the Fall '10 term at UMass (Amherst).

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lab 5 - Physics 134 Lab 5: Atomic Spectra Abstract: In lab...

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