physics

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A ray of light is incident at an angle of 20degrees to the normal on one face of an equilateral prismm made in glass of refractive index 1.523. Trace the ray of light through the prism and find the total deviation produced.

  • physics -

    Do i find i1' first?
    sini1'= n1/n1'sini1
    i1'= 1/1.523sin20
    i1'=13degrees?

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