what is prism ? ...........
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A glass prism is a solid figure with two triangular ends, and bound by 3 refracting rectangular surfaces.
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A triangular prism is a transparent object made up of glass. It has two triangular bases and three rectangular lateral surfaces. These surfaces are inclined to each other at some angle known as the angle of the prism.
In a triangular prism, when a ray of light passes through it, refraction occurs twice, when it enters the prism as well as when it leaves the prism. When the refracted ray of light is obtained on a screen spectrum is observed...
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