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A boy with a mouth 5cm wide stands 2m away from a plane mirror. Where is his image and how wide is the image of his mouth? b) The boy walks towards the mirror at a speed of 1m/s. At what speed does his image approach him

ScienceClass 10ICSEAnswered 27 Mar 2026
Answer
  1. The width of the image of the mouth of the boy is 5cm and the image is formed at 2m behind the
  2. The speed of the boy approaching the mirror will be the same as the image approaching = 1m/s therefore, the speed = 2+2 = 4 m/s.

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