試題詳解

10. For a neutron with kinetic energy, KE=188 KeV, calculate the velocity V and uncertainty of the position △x to measure this neutron? for an electron with the same △x, calculate the minimum energy E, kinetic energy KE, momentum , velocity , and the maximum De-Broglie wavelength .

 
(A) For a neutron with KE=188 KeV, = 5.998×10⁶m/s, △x ≥ 4.199×m

 
(B) For an electron with the same △x, KE ≥1.894 MeV, = 2.35Mev / c,

(C) For an electron with the same △x, KE ≥ 8.903 MeV, ≥ 9.4 MeV /c,

(D) For an electron with the same △x, E ≥ 9.414 MeV, ≥0.9985 с 

(E) For an electron with the same △x, △x ≥ 2.0995×m, ≥4.7 MeV/c,