What can you infer about the lepton number of the neutrino?
A. This quanton has lepton number = +1.
B. This quanton has lepton number = -1.
C. This quanton has lepton number = 0.
D. One cannot determine this quanton’s lepton number from the processes we have studied.
A. This quanton has lepton number = +1.
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An 800-kHz radio signal is detected at a point 9.1 km distant from a transmitter tower. The electric field amplitude of the signal at that point is 0.440 V/m
Assume that the signal power is radiated uniformly in all directions and that radio waves incident upon the ground are completely absorbed. What is the average total power radiated by the transmitter? (c = 3.00 × 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2) A) 0.27 MW B) 0.32 MW C) 0.38 MW D) 0.45 MW E) 0.50 MW
In state n = 1, the energy of the hydrogen atom is -13.58 eV. What is its energy in state n = 2?
A) -13.58 eV B) -6.79 eV C) -4.53 eV D) -3.40 eV E) -1.51 eV
What is meant by "neutrino oscillation"?
What will be an ideal response?
A charged particle is moving perpendicular to a uniform magnetic field. The radius of its path can be decreased most by
1.decreasing the magnitude of the magnetic field. 2.increasing its velocity. 3.decreasing its velocity and increasing the magnitude of the magnetic field. 4.increasing its velocity and decreasing the magnitude of the magnetic field.