Solved: (II) A laser used to weld detached retinas puts

Chapter 28, Problem 41P

(choose chapter or problem)

\(\text { (II) }\) A laser used to weld detached retinas puts out \(25 \text { - ms - long }\) pulses of \(640-n m\) light which average \(0.68-\mathrm{W}\) output during a pulse. How much energy can be deposited per pulse and how many photons does each pulse contain? [Hint: See Example 27–4.]

Equation Transcription:

Text Transcription:

(II)

25-ms-long

640-nm

0.68-W

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