**Question 18:**A person approaches a plane mirror at a speed of 2 m/s. How fast does he approach his image?A) 3 m/s B) 2 m/s C) 1 m/s D) 4 m/s E) 1 m/s **Explanation:**This type of problem relates to the concept of images in plane mirrors. When a person approaches a plane mirror, their image in the mirror moves towards them at the same distance from the mirror as the person is on the other side. Therefore, the relative speed between the person and their image is twice the speed of the person approaching the mirror.In this case, the correct answer is D) 4 m/s, as the distance between the person and their image reduces at twice the speed of their approach (2 m/s + 2 m/s = 4 m/s).

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Answered: 18) A person approaches a plane mirror…

18) A person approaches a plane mirror at a speed of 2 m/s How fast does he approach his image? A) 3 m/s B) 2 m/s C) 1 m/s E) 1 m/s D) 4 m/s

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.

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