The critical angle of refraction for calcite is 68.4 when it forms a boundary with water. Use this information to determine the speed of light in Calcite. Assume the refractive index of water, 1.333, is less than the refractive index of calcite.

Question

Gordon Eaton

Mathematics

17 August, 01:17

The critical angle of refraction for calcite is 68.4 when it forms a boundary with water. Use this information to determine the speed of light in Calcite. Assume the refractive index of water, 1.333, is less than the refractive index of calcite.

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Izabelle · Answer 1

Using Snell's law with

N2=1.33 for water

N1 sin A1 = N2 sin A2 = N2

N1 = 1.33/sinA

so, the speed of light in clctie = (3*10^8 m/s) / 1.43

= 1*10^8 m/s