Refraction Θ 5 Figure 5 An optical device consists of two glass blocks of different indices of refraction, arranged as shown in figure 5. The refractive index from air to medium 1 is 1.2. The refractive index from medium 1to medium 2 is 1.25 a) If light is incident at 60 o on the block with the smaller refractive index, determine the angles Θ 1 , Θ 2 , Θ 3 , Θ 4 and Θ 5 . b) What is the velocity of light in medium 1? Speed of light (c) c = 3 x10 8 m s -1 . Θ 2 Θ 1 Medium 1 Θ 3 Medium 2 60 0 Θ 4
Figure 5An optical device consists of two glass blocks of
different indices of refraction, arranged as shown in figure 5. The
refractive index from air to medium 1 is 1.2. The refractive index
from medium 1to medium 2 is 1.25a) If light is incident at 60o on
the block with the smaller refractive index, determine the angles
1, 2, 3, 4 and 5. b) What is the velocity of light in medium 1?
Speed of light (c) c = 3 x108 m s-1.
