A ray of light is incident at an angle of 60 deg on one face of a prism which has an angle of 30°. The ray emerging out of the prism makes an angle of 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 the lens.
A ray of light is incident at an angle of 60 deg on one face of a prism which has an angle of 30°. The ray emerging out of the prism makes an angle of 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 the lens.
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Transcribed Image Text:A ray of light is incident at an angle of 60 deg on
one face of a prism which has an angle of 30°. The
ray emerging out of the prism makes an angle of
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 the lens.
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