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a source of light S is located at a distance of 8cm from a plane mirror. the reflected ray S' is detected 2cm from the mirror at a vertical dislacement of 12cm. the point of reflection is at a distance of

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Q. A source of light S is located at a distance of 8 cm from a plane mirror. The reflected ray S' is detected 2 cm from the mirror at a vertical displacement of 12 cm. The point of reflection is at a distance of

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