A laser used to weld detached retinas puts out 28-ms-long pulses of 640-nm light which average 0.68-W

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A laser used to weld detached retinas puts out 28-ms-long pulses of 640-nm light which average 0.68-W output during a pulse. How much energy can be deposited per pulse and how many photons does each pulse contain?

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Physics Principles with Applications

ISBN: 978-0321762429

7th edition

Authors: Douglas C. Giancoli

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Question Posted: Aug 18, 2010 12:19 AM

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A laser used to weld detached retinas puts out 28-ms-long pulses of 640-nm light which average 0.68-W

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The energy of a pulse is EPAr 068 W 2810s ...View the full answer

Physics Principles with Applications

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