Which of the following is not massless?
A) neutrino
B) muon
C) graviton
D) photon
Correct Answer:
Verified
Q19: Controlled fusion has been difficult to achieve
Q20: The neutrino has
A) negligible rest mass, negative
Q21: Scientists were led to postulate the existence
Q22: Which one of the following particles can
Q23: What effect does an increase in the
Q25: The exchange particles for the weak force
Q26: The Feynman diagram in Figure 30-1 shows
Q27: Which of the following is not considered
Q28: Nucleons are
A) hadrons.
B) leptons.
C) baryons.
Q29: An electron is an example of
A) a
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