Physics, 20.06.2020 23:57 chloeann5397
g The sun's rays are focused, using a lens as a "burning glass." All the visible sunlight entering a lens of radius 2.70 cm is concentrated in a circular spot of radius 0.950 mm. Find the intensity of visible light in the spot if the intensity of visible light striking the lens is 777 W/m2.
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g The sun's rays are focused, using a lens as a "burning glass." All the visible sunlight entering a...
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