InterviewSolution
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InterviewSolution
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A ray of light is incident at an angle of `60^@` on the face of a prism having refracting angle `30^@.` The ray emerging out of the prism makes an angle `30^@` with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges and calculate the refractive index of the material of prism. |
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Answer» Given, `i_(1)=60^(@),A=30^(@)and delta=30^(@)` From the relation, `delta=(i_(1)+i_(2))-A` we have, `i_(2)`=0 This means that the emergent ray is perpendicu,ar to the face through which it emerges. |
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