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Question
Electrons in a certain laser make transitions from a metastable state to the ground state. Initially there are 6 x1020atoms in the metastable state and 2x1020atoms in the ground state. The number of photons that can be produced in a single burst is about:
A) 2 x1020
B) 3 x1020
C) 4 x1020
D) 6 x1020
E) 8 x1020
Answer
This answer is hidden. It contains 1 characters.
Related questions
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