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Applications of reflection at plane surfaces
1. The kaleidoscope
It comprises of two plane mirrors inclined at an angle of 600 inside a tube. It has a ground-glass plate to admit light. A piece of brightly coloured glass is placed on the glass plate. This acts as an object. When one looks down the tube, five images of the object are seen which together with the object form a symmetrical pattern in six sectors.
A kaleidoscope may be used by designers to obtain ideas on systematic patterns.
2. The periscope
This is an object that can be used to view objects over obstacles. It consists of two plane mirrors facing each other at an angle of 450. It is used to in submarines and also to watch over crowds.
Moraa orina answered the question on April 7, 2018 at 17:48
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