Question

value of angle of deviation in refraction of light for normal incidence is--
a)90,b)60,c)30,d)0​

Answer 1

Answer:

d) 0

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Answer 2

Answer:

value of angle of deviation in refraction of light for normal incidence is 0

Explanation:

Angle of Deviation = 2(Angle of incidence) - ( Angle of Prism).  Angle of incidence is the angle made by the incident ray and the normal. When the emergent Ray is directed into  the direction of incident ray and the  incident ray is extended the intersection point makes the angle of deviation.

In case of refraction of light for normal incidence, there is no deviation

so the value is 0

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