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Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
22
Electromagnetic Waves
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22-1: B Produced by Changing E
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22-2: EM Waves
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22-3: Electromagnetic Spectrum
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22-4: Measuring the Speed of Light
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22-5: Energy in EM Wave
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22-6: Radiation Pressure
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22-7: Radio, TV
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Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 19
Q

Pulsed lasers used for science and medicine produce very brief bursts of electromagnetic energy. If the laser light wavelength is 1062 nm (Neodymium–YAG laser), and the pulse lasts for 34 picoseconds, how many wavelengths are found within the laser pulse? How brief would the pulse need to be to fit only one wavelength?

A
  1. 9600 wavelengths9600 \textrm{ wavelengths}
  2. 3.54×10−15 s3.54 \times 10^{-15} \textrm{ s}
Giancoli 7th Edition, Chapter 22, Problem 19 solution video poster
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