Refractive index of diamond with respect to glass is 1.6 and the absolute refractive index of glass is 1.5. Find out the absolute refractive index of diamond.

Answer:

The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given pair of media. This law is also known as Snell’s law of refraction of light. The law follows from the boundary condition that a wave is continuous across a boundary, which requires that the phase of the wave be constant on any given plane.

  • Refractive index of diamond with respect to glass ndg= 1.6
  • Refractive index of glass ng = 1.5
  • Refractive index of diamond nd= ?

Refractive index of diamond with respect to glass ndg = nd/ng

1.6 = nd/1.5

nd = 1.6 × 1.5

nd = 2.4

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