?Note: Answers to all odd-numbered Problems, numbered in blue, can

Chapter 2, Problem 92

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Note: Answers to all odd-numbered Problems, numbered in blue, can be found in Appendix III. Exercises in the Problems by Topic section are paired, with each odd-numbered problem followed by a similar even-numbered problem. Exercises in the Cumulative Problems section are also paired but more loosely. Because of their nature, Challenge Problems and Conceptual Problems are unpaired.

A particular laser consumes 150.0 watts of electrical power and produces a stream of \(1.33 \times 10^{19}\) 1064-nm photons per second. What is the percent efficiency of the laser in converting electrical power to light?

Text Transcription:

1.33 times 10^19

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