?Note: Answers to all odd-numbered Problems, numbered in blue, can
Chapter 2, Problem 91(choose chapter or problem)
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 laser produces 20.0 mW of red light. In 1.00 hr, the laser emits \(2.29 \times 10^{20}\) photons. What is the wavelength of the laser?
Text Transcription:
2.29 times 10^20
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