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Question
A free electron has a momentum of 5.0 x10-24kg .m/s. Its wavelength,as given by its wave function, is:
A) 1.3 x10-8 m
B) 1.3 x10-10 m
C) 2.3 x10-11 m
D) 2.3 x10-13 m
E) none of these
Answer
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Related questions
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The intensity of the microwave background radiation, a remnant of the big bang:
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D) is proportional to the square of the distance from us
E) is nearly the same in all directions
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Any meson is a combination of:
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Q:
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Q:
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Q:
A neutral lepton cannot decay into two neutrinos. Of the following conservation laws, which would be violated if it did?
A) Energy
B) Baryon number
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Q:
An electron participates in:
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Q:
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A) photon
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B) greater particle number densities
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Q:
For a controlled nuclear fusion reaction, one needs:
A) high number density nand high temperature T
B) high number density nand low temperatureT
C) low number density nand high temperature T
D) low number density nand low temperature T
E) high number density nand temperature T = 0 K
Q:
The first step of the proton-proton cycle is:
Q:
Nuclear fusion in the Sun is increasing its supply of:
A) hydrogen
B) helium
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Q:
The purpose of a moderator in a nuclear reactor is to:
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The energy supplied by a thermal neutron in a fission event is essentially its:
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Q:
A certain nucleus, after absorbing a neutron, emits a and then splits into two alpha particles. The (A, Z) of the original nucleus must have been:A) 6, 2B) 6, 3C) 7, 2D) 7, 3E) 8, 4
Q:
Radioactive polonium, 214Po (Z= 84), decays by alpha emission to:
A) 214Po (Z= 84)
B) 210Pb (Z= 82)
C) 214At (Z= 85)
D) 218Po (Z= 84)
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Q:
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Q:
Bombardment of 28Si (Z= 14) with alpha particles may produce:
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