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A totally reflecting small plane mirror placed horizontally faces a parallel beam of light as...

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Physics

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A totally reflecting small plane mirror placed horizontally faces a parallel beam of light as shown in figure The mass of mirror is 20 gm Assume that there is no absorption in the lens and that 30 of the light emitted by source goes through lens Find the power of source in MW needed to support the weight of mirror g 10 m sec mirror 28 30 30x180x1 18 To 54

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