Physics
Define the term angle of deviation.
Refraction Plane Surfaces
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Answer
Angle of deviation is the angle between the direction of incident ray and the emergent ray. It is represented by the greek alphabet δ (delta).
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Related Questions
How does the deviation produced by a prism depend on
(i) the refractive index of its material, and
(ii) the wavelength of incident light
How does the angle of deviation depend on refracting angle of the prism?
A ray of light incident at an angle of incidence i1 passes through an equilateral glass prism such that the refracted ray inside the prism is parallel to its base and emerges at an angle of emergence i2.
(i) How is the angle of emergence 'i2' related to the angle of incidence 'i1'.
(ii) What can you say about the angle of deviation in such a situation?
A light ray of yellow colour is incident on an equilateral glass prism at an angle of incidence equal to 48° and suffers minimum deviation by an angle of 36°.
(i) What will be the angle of emergence?
(ii) If the angle of incidence is changed to (a) 30°, (b) 60°, state in each case whether the angle of deviation will be equal to less than or more than 36°?