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An astronomer is observing a star in the constellation of Cerberus. It appears to be a red Giant star. He passes light from his telescope
An astronomer is observing a star in the constellation of Cerberus. It appears to be a red Giant star. He passes light from his telescope through a spectroscope fitted with a diffraction grating that has lines per
He sees a set of spectral lines he recognises from oxygen.
One spectral line is blue with a wavelength of What is highest order of these blue lines will he see on his spectroscope?
Some of the energy states in an oxygen atom are shown below. This blue line of wavelength corresponds to a transition between which two levels?
table
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