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Chapter 25: Q28CQ (page 928)

If you wish to see your entire body in a flat mirror (from head to toe), how tall should the mirror be? Does its size depend upon your distance away from the mirror? Provide a sketch.

Short Answer

Expert verified

The mirror must be half the size of the object’s size.

Step by step solution

01

Define Geometric Optics

Geometrical optics, often known as ray optics, is an optics model that describes light propagation using rays. In geometric optics, a ray is an abstraction that can be used to approximate the routes along which light propagates under particular conditions.

02

Explanation

A flat mirror should be half the size of your body if you want to see your full physique.

The diagram representing the answer is:

Therefore, the mirror should be half of the object’s size.

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