Multiple Choice
Matter waves: A nonrelativistic electron has a kinetic energy of 5.4 eV. What is the energy of a photon whose wavelength is the same as the de Broglie wavelength of the electron? (mel = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J)
A) 2.4 keV
B) 2.2 keV
C) 2.0 keV
D) 2.5 keV
E) 2.7 keV
Correct Answer:

Verified
Correct Answer:
Verified
Q46: Photon energy: Gamma rays are photons with
Q47: Bohr atom: A hydrogen atom is excited
Q48: Uncertainty principle using ΔpΔx ≥ h/2: A
Q49: Uncertainty principle using ΔpΔx ≥ ħ/2: A
Q50: Bohr atom: A hydrogen atom makes a
Q52: Photoelectric effect: When a metal surface is
Q53: Blackbody radiation: An electric current through a
Q54: Uncertainty principle using ΔxΔp ≥ ħ: A
Q55: Uncertainty principle using ΔpΔx ≥ h/2: A
Q56: Bohr atom: A hydrogen atom is in