A laser beam has a diameter of 2 mm and average powerof 5
A laser beam has a diameter of 2 mm and average powerof 5 mW. The radiation pressure exerted by this beam is:
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a laser beam has a diameter of 2 mm and average powerof 5 mw the radiation pressure exerted by this beam
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a small black ball of mass 100g and radius 2 cm hangs at restfrom a string of length 50 cm a laser beam with an
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