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Reflection

2.2 Devices with mirrors

Demonstrate the operation of a device containing one or more mirrors, using diagrams.

Types of uses

Mirrors are put to use in a variety of situations - scientific, technical, artistic and everyday uses. Here are a few devices found in this wide range of applications. For each device, the mirror positions are indicated. In addition the behaviour of the light is described in order to demonstrate the various functions of the mirrors.

Summary table: Various uses of devices with mirrors and their effects.

Use

Device

Desired effect

everyday

Flashlight

concentrate the light

everyday

Surveillance mirrors

wide field of vision

the arts

Interior design

depth

the arts

Make-up kits

magnified/reduced image

technological

Periscope

Alter the path of light

technological

Analog meter dials

precision

scientific

Telescopes

magnify

scientific

Torsion balance

precision

 

Technical development of plane mirrors