physics/light reflection

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A light of ray is incident at an angle of 58degrees on the plane surface of a block of glass of refractive index 1.60. Some light is reflected on the other side of the normal at the same angle as the angle of incidence.
Find:

a.the angle between the light reflected from the surface and the light refracted into the glass
b.the deviation of the refracted ray

  • physics/light reflection -

    (a) sin r = sini/n =sin 58°/1.6=0.53
    r =32 °
    α=180°-58°-32°=90°
    (b) δ= 58 -32 =26°

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