A particular emission spectral line is measured in the laboratory to have a frequency of 7.3
Question:
A particular emission spectral line is measured in the laboratory to have a frequency of 7.3 × 1014 Hz.
a. Calculate the wavelength of this spectral line in the laboratory.
b. Calculate the observed wavelength of this same spectral line in the spectrum of a galaxy moving away from the Earth at a speed of:
i. 11 Mm s−1
ii. 7.0 % the speed of light.
c. The spectrum of all distant galaxies is redshifted. State and explain what you can deduce about the Universe.
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Step by Step Answer:
a Since the emission frequency of an electron in a hydrogen atom is det...View the full answer
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Related Book For 
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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