Download Refraction Problems Physics 20

Refraction Problems Physics 20
sin 1 v1 1 n2
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sin  2 v2 2 n1
n
c
v
1 A ray of light traveling through air is incident upon a sheet of crown glass (n=1.50) at
an angle of 30.0 What is the angle of refraction?[19.2]
2. Calculate the speed of light in zircon (n = 1.92).[1.56x108]
3 What is the index of refraction of a liquid in which light travels at 2.50x10 8 m/s?[1.20]
4 The index of refraction of diamond is 2.42. What is the speed of light in diamond?
[1.24 x 108 m/s]
5 What is the speed of light in sodium chloride (n=1.53) expressed in terms of the speed
of light in a vacuum?[0.65c]
6 Light passes from air into diamond. If the refracted angle is 21°, what is the incident
angle? [60.°]
7. A ray of light passes from water (n=1.33) into carbon disulfide (n = 1.63) with an
incident angle of 30.° What is the refracted angle? [24°]
8. What is the speed of light in clear plastic whose index of refraction is 1.40?
[2.14 x 108 m/s]
9. The speed of light in a clear liquid is 2.3 x108 m/s. What is its index of refraction?
[1.3]
10. A beam of light strikes the surface of a block of glass (n= 1.50) and produces a
refracted angle of 10.0°. What is the incident angle? [15.1°]
11. A ray of light strikes the surface of water (n=1.33) at a 60.° angle from the water
surface. What is the refracted angle? [22.1°]
12. What is the critical angle for an air glass interface if the index for glass is 1.50?
[41.8°]
13. What is the critical angle for a water-lucite (plastic) interface if the index for water is
1.33 and the index for Lucite is 1.51? [61.7°]