Answer to Question #52746 in Optics for Atooki Yunus

Question

If a 4-m-tall child stands 2 m in front of a vertical plane mirror, the image of the child will be ------- m tall

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Answer 1

Consider an object placed a certain distance in front of a mirror, as shown in the diagram.

In a ray diagram, rays of light are drawn from the object to the mirror, along with the rays that

reflect off the mirror. The image will be found where the

reflected rays intersect

From the above diagram, it is clear that, the height of the image is the same as the height of the object. Therefore the image of the child will be 4m tall.