Concept explainers
The speed of a galaxy. The distance of a galaxy from Earth.
Answer to Problem 26P
The speed of a galaxy is0. 33c . The galaxy is
Explanation of Solution
Given:
The wavelength of a Hydrogen line at
Formula used:
Red shift is calculated as
Hubble’s law states,
Calculation:
Difference in the apparent wavelength due to redshift is
Speed of the galaxy is measured as
Distance of the galaxy showing red shift is
Conclusion:
The speed of a galaxy is
Chapter 33 Solutions
Physics: Principles with Applications
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