Under minimum deviation condition in a prism Under minimum deviation condition in a Prism if array is incident at an angle 30° the angle between the emergent Ray and the second refracting surface of the prism

On same plane the angle of emergence is always equal to angle of refraction. The prism will split into 7 rainbow colours if light is white in colour
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Since for minimum deviation 2i=A and given that i=30 degrees, Therefore A=2*30=60 degrees. THANK YOU
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The correct process is given in the problem

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