Physics
Draw a ray diagram to show the refraction of a monochromatic ray through a prism when it suffers minimum deviation. How is the angle of emergence related to the angle of incidence in this position.
Refraction Plane Surfaces
ICSE
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Answer
Below diagram shows the refraction of a monochromatic light ray through a prism when it suffers minimum deviation:
In an equilateral prism, when the prism is in minimum deviation, the angle of incidence i1 is equal to the angle of emergence i2.
Hence,
Angle of emergence (i2) = Angle of incidence (i1).
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