A ray of light is incident on one of the faces of the prism with an angle 40degree with the surface.The angle of prism is 60degree.The emergent ray is deviated through an angle 38degree.The angle of emergence is
1)30degree 3)48degree 3)52degree 4)58degree

We know that in a prism     i +e =A +m, so          i =90°-40°=60° ,    A =60° and m=38°Therefore    60° +e =60° +38°or               e =38°Therefore none of the answers are correct. 

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