11.1 INTRODUCTION
The purpose of this chapter is to explain the basic principles that govern light passing through a prism or a combination of prisms. Types of prisms and image formation are also presented. The concept of light passing through prisms is very important to photonics and has significant use in image formation and building optical devices. Particular emphasis will be given to calculating the index of refraction of a prism, producing a rainbow of colours, and mixing a rainbow of colours using a glass rod or tube. Also in this chapter, along with the theoretical presentation, five experimental cases demonstrate the principles ...
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