describe refraction through a prism and establish the relationδ = i
1 + i
2 − A
Answers
Answer:
It is a solid figure having two triangular bases and three rectangular surfaces and is the closed surface. The angle between each surface is the angle of the prism. Here the opposite surfaces are equal surfaces and are parallel. We notice that here there are two refracting surfaces which means the surface where refraction of light takes place
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Before studying how refraction takes place through a prism, let us see what refraction is. The change in direction or bending of a light wave passing from one transparent medium to another caused by the change in wave’s speed is the refraction. The extent of bending of light rays entering from one medium to another is the refractive index and is denoted by the ‘n’.
It is represented as n = c/v, where c = velocity/speed of light of a certain wavelength in the air and v = velocity of light in any medium.