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a laser has a power of 22.0 w and a beam radius of 0.500mm. Find the intensity of the laser. Anyone knows?
Intensity * area = powerI * pi r^2 = PI = 22/ (pi (0.5 * 10^-3)^2)
A STAGGERING28 * 10^6 W/m^2 (2 significant figures)
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