Rough Copy/Science Fair

In: Science

Submitted By Delanie
Words 1051
Pages 5
Will the size of the field of view vary depending on whether a convex or concave mirror is used?

Delanie Wheeler
Science Fair
10/24/13

Table of Contents

Title Page………………..1
Table of Contents……2
Abstract………………….3
Procedure……………….4
Results……………………5
Work Cited……………..6

Abstract

Will the size of the field of view vary depending on whether or not a convex or a concave mirror is used? If an object is viewed through a concave mirror instead of a convex mirror, then the field of view will increase. Convex mirrors will show a larger field of view. The procedure followed was to use two concave and convex mirrors that were the same size and to take a picture of the field of view that they both showed. Then, after the pictures were printed, use them to measure the area of the two fields of view. This was repeated five times and an average was obtained. The results were that the convex mirror’s field of view was larger than the concave mirror’s field of view. The convex mirror’s average field of view at 20 feet away was 35 feet across. The concave mirror’s average field of view at 20 feet away was 10 feet across. The logical conclusion is that convex mirrors make images appear smaller than they are, but this allows you to see more in the mirror. In other words, the field of view is larger when using a convex mirror.

Review of Research

A convex mirror, fish eye mirror or separating mirror is a curved mirror in which the reflective surface bulges toward the light source. Convex mirrors reflect light outwards; therefore they are not used to focus light. Such mirrors always form a virtual image, since the focus and the center of curving are both imaginary points "inside" the mirror, which cannot be reached.
As a result, images formed by these…...

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