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The Boy Walks Towards the Mirror at a Speed of 1 M/S. at What Speed Does His Image Approach Him?

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Question

The boy walks towards the mirror at a speed of 1 m/s. At what speed does his image approach him?

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Solution

The image approaches him at a speed of 2 m/s . The reason being, the image moves at a speed of 1 m/s and
 the relative speed of the image will be equal to the sum of the speeds of the image and the boy.   

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Chapter 1: Reflection of Light - Exercise 1 [Page 174]

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Lakhmir Singh Physics [English] Class 10
Chapter 1 Reflection of Light
Exercise 1 | Q 24.2 | Page 174

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