Concept explainers
(a)
Neutrino rest mass to close the universe for the given value.
(a)
Answer to Problem 40GP
Neutrino rest mass to close the universe when nucleons make up only
Explanation of Solution
Given:
The neutrino density is, like photons, about
Formula used:
Nucleon number density is the ratio of the nucleon mass density and mass of a nucleon.
Calculation:
Nucleon mass density is
Nucleon number density is
Neutrino number density is
Neutrino mass density is
Conclusion:
Thus, neutrino rest mass density is
(b)
Neutrino rest mass to close the universe for the given value.
(b)
Answer to Problem 40GP
Neutrino rest mass to close the universe when nucleons make up only
Explanation of Solution
Given:
The neutrino density is, like photons, about
Formula used:
Nucleon number density is the ratio of the nucleon mass density and mass of a nucleon.
Calculation:
Nucleon mass density is
Nucleon number density is
Neutrino number density is
Neutrino mass density is
Conclusion:
Thus, neutrino rest mass density is
Chapter 33 Solutions
Physics: Principles with Applications
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