A typical HeNe laboratory laser produces light of wavelength 632.8 nm. The laser beam carries a power
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A typical HeNe laboratory laser produces light of wavelength 632.8 nm. The laser beam carries a power of 0.35 mW and strikes a target perpendicular to the beam.
How many photons per second strike the target?
Related Book For
University Physics with Modern Physics
ISBN: 978-0321696861
13th edition
Authors: Hugh D. Young, Roger A. Freedman, A. Lewis Ford
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