44. Assume that the energy level diagram shown below represents the possible states of an electron in a certain atom. If the atom absorbed 13 eV of energy when in the ground state, is it possible that the atom might emit 1 eV of energy at some future time?

a. Yes, during the transition from the 3rd to the 4th excited state.

b. No, there are no 1 eV emissions once in the 3rd state.

c. Yes, the 3rd state energy can be used to make two “half transitions” to the 2nd state.

d. No, once in the 3rd state, the electron will remain there.

45. Refer to the energy level diagram shown in the previous question. Which of the transitions listed below involve a photon emission with the greatest wavelength?

a. Transition from the 4th state to the 3rd state.

b. Transition from the 4th state to the ground state.

c. Transition from the 3rd state to the 4th state.

d. Transition from the ground state to the 4th state.

e. Two of the answers above are correct.

46. In the case of beta decay involving the emission of an electron, which of the following must decrease in number for a daughter product when compared to the parent nucleus?

a. A neutron

b. A proton

c. Neither a neutron nor a proton

d. Both a neutron and a proton

47. The Special Theory of Relativity describes space and time differently than the descriptions found in classical physics. Which selection below lists phenomena that are only explainable using the Special Theory of Relativity?

a. Time dilation and atomic spectra

b. mass-energy equivalence and “entropy increase”

c. The speed of light as a cosmic speed limit and the Michelson-Morley Experiment

d. Quantum theory and wave-particle duality