A green laser pointer has a power output of 142 mW. (a) If the laser beam is projected onto a circular spot 3.75 mm in diameter, what is its intensity? W/m? (b) Find the peak electric field strength. | V/m (c) Find the peak magnetic field strength. |T

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A green laser pointer has a power output of 142 mW.
(a) If the laser beam is projected onto a circular spot 3.75 mm in diameter, what is its intensity?
W/m2
(b) Find the peak electric field strength.
V/m
(c) Find the peak magnetic field strength.
Transcribed Image Text:A green laser pointer has a power output of 142 mW. (a) If the laser beam is projected onto a circular spot 3.75 mm in diameter, what is its intensity? W/m2 (b) Find the peak electric field strength. V/m (c) Find the peak magnetic field strength.
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