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Lasers are classified according to the eye-damage danger they pose. Class 2 lasers, including many laser pointers, produce visible light with no greater than 1 mW total power. They're relatively safe because the eye's blink reflex limits exposure time to 250 MS.
A) Find the intensity of a 1-mW} class 2 laser with beam diameter 1.0mm.
B) Find the total energy delivered before the blink reflex shuts the eye.
C) Find the peak electric field in the laser beam.
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