A distant galaxy emits light that has a wavelength of 434.1 nm. On earth, the wavelength of
Question:
A distant galaxy emits light that has a wavelength of 434.1 nm. On earth, the wavelength of this light is measured to be 438.6 nm.
(a) Decide whether this galaxy is approaching or receding from the earth. Give your reasoning.
(b) Find the speed of the galaxy relative to the earth.
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The Doppler effect for electromagnetic radiation is given by Equation 246 where f o is the observed ...View the full answer
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