A man 2 m tall, whose eye level is 1.84 cm above the ground, looks at his image in a vertical mirror. What is the minimum vertical length of the mirror if the man is to be able to see whole of himself?
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Explanation:
A man is 2m tall whose eye level is 1.84m. ... H= (2–1.84)/2 + 1.84/2 = (0.08 + 0.92) = 1 m, where mirror's bottom edge must be placed 0.92 m from floor.
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