Question 14
Which of the following is NOT true about fluorescence and phosphorescence?
A. Phosphorescence emission lifetimes are generally shorter than fluorescence
B. Fluorescence always involves emission from a single excited state to the singlet ground state
C. Phosphorescence involves emission from a triplet excited state to a singlet ground state
D. Both fluorescence and phosphorescence and luminescence are considered luminescence phenomena
E. None of the above
Editorial review: explain the scientific issue and state any assumptions needed for a supported answer.
A. Phosphorescence emission lifetimes are generally shorter than fluorescence
B. Fluorescence always involves emission from a single excited state to the singlet ground state
C. Phosphorescence involves emission from a triplet excited state to a singlet ground state
D. Both fluorescence and phosphorescence and luminescence are considered luminescence phenomena
E. None of the above
Editorial review: explain the scientific issue and state any assumptions needed for a supported answer.