Physics, 30.08.2019 20:30 slonzyy1682
Afive-milliwatt laser, emitting light with wavelength 690 nm is turned on for 20 seconds. we will approximate the beam as a cylinder of area 2.5 mm2 calculate the following beam quantities: a. length b. volume c. intensity d. energy e. energy density f. rms electric field g. rms magnetic field h. the number of photons (h 6.63 x 10-34 joules seconds.
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Afive-milliwatt laser, emitting light with wavelength 690 nm is turned on for 20 seconds. we will ap...
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