Multiple Choice
In the standard model, as with the leptons, there are 3 generations of quarks u&d, c&s, and t&b) . The reason for this is
A) because a baryon contains 3 quarks.
B) because the electric charge of the quarks is +1/3 or -2/3 of e.
C) because each quark has a baryon number of 1/3.
D) all of the above.
E) something we do not yet understand.
Correct Answer:

Verified
Correct Answer:
Verified
Q6: Leptons<br>A)are less massive than the lightest hadron.<br>B)include
Q8: The charge of the u quark is<br>A)e<br>B)(-1/3)e<br>C)(2/3)e<br>D)(-2/3)e<br>E)(1/3)e
Q12: The field quanta associated with the strong
Q13: The fact that the reaction <sup>37</sup>Cl +
Q15: In the standard model, weak charge is<br>A)
Q18: The field quanta that are thought to
Q22: Particles that decay via the strong interaction
Q26: The cosmic background radiation strongly suggests that<br>A)the
Q27: Particles that participate in the strong nuclear
Q33: According to Hubble's law,the age of the