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The Atomic Spectrum

by M. next
Tags: atomic, spectrum
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M. next
#1
Apr28-13, 08:23 AM
P: 378
When doing an experiment in order to observe the atomic spectra of some gas. We observe while peaking through the diffraction grating, symmetrical lines starting from n=1. Where does this symmetry arise from? Why do we see the same spectrum repeated on both, left side and right side. As if there was a mirror instead of the gas tube that reflected the first spectrum to the opposite side.

Thanks.
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mfb
#2
Apr28-13, 01:41 PM
Mentor
P: 11,837
The setup is symmetric, there is no reason why the lines should be asymmetric.
M. next
#3
Apr29-13, 10:13 AM
P: 378
Thank you for your reply.


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