To make an efficient laser while pumping a three-state system, which of the following conditions is necessary? (note: the lowest atomic energy state is referred to as #1, the first excited state [middle energy level] is referred to as #2, and the 2nd excited state [the highest energy state] is referred to as #3)a) The lifetime of the excited energy state at level 2 should be fairly longb) The lifetime of the excited energy state at level 2 should be fairly shortc) The lifetime of the excited energy state at level 2 doesn't matterd) None of the above
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Physics, 22.06.2019 15:00, bagofmud8339
When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell
Answers: 3
To make an efficient laser while pumping a three-state system, which of the following conditions is...
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