Question: A 654-nm laser whose beam diameter is 0.4 mm points upward. A small, perfectly reflecting spherical particle having a diameter of 10 m and a

A 654-nm laser whose beam diameter is 0.4 mm points upward. A small, perfectly reflecting spherical particle having a diameter of 10 μm and a density of 0.2 g/cm3 is supported against gravity by the radiation pressure from the laser beam. Determine the power output of this laser.


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