BIOLOGY (CLASS 11)

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              Diversity in living organisms (part 1)











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Dispersion and refraction of Light through the PRISM(Including Video)

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Ray Optics   Table of Content Refraction through a Prism Refraction through a Prism for Small Angle of incidence Dispersion ​Reason for Dispersion Refraction through a Prism Solved Problems Related Resources Refraction through a Prism A prism is a wedge-shaped body made from a refracting medium bounded by two plane faces inclined to each other at some angle.  The two plane faces are called are the  refracting faces  and the angle included between these two faces is called the  angle of prism  or the  refracting angle . In the  below  figure (1), ABC represents the principal section of a glass-prism having ∠A as its refracting angle. A ray KL is incident on the face AB at the point F where N 1 LO is the normal and ∠i 1  is the angle of incidence. Since the refraction takes place from air to glass, therefore, the refracted ray LM bends toward the normal such that ∠r 1  is the angle of refraction. If µ be the refractive index of glass with respect to air, then µ = sin i/sin r     (By Snel
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