Answered: A galaxy moving away from the earth has…

A galaxy moving away from the earth has a speed of 0.0100c . What wavelength do we observe for an ni = 7 to nf = 2 transition for hydrogen in that galaxy?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter11: Gravity, Planetary Orbits, And The Hydrogen Atom

Section: Chapter Questions

Problem 43P

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Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.

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A galaxy moving away from the earth has a speed of 0.0100c . What wavelength do we observe for an n_i = 7 to n_f = 2 transition for hydrogen in that galaxy?

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