Task id16586
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DESCRIPTION
Task id16586
An electric lamp is placed in a matte ball of radius R = 20 cm and suspended at a height h1 = 5 m above the floor. An opaque ball of radius r = 10 cm hangs under the lamp at a height h2 = 1 m from the floor. Find the dimensions of the shadow and penumbra on the floor.
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Detailed solution. Format gif
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