The major difference between phosphorescent and fluorescent materials is
A) a time delay between excitation and de-excitation.
B) a difference in brightness.
C) the greenish color of phosphorescence.
D) none of the above
Correct Answer:
Verified
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A)about
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A)phosphors.
B)white-emitting diodes.
C)extra-high electrical barriers.
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A)a fluorescent
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