Assignment:
1. A light wave traveling in air passes into the water in a swimming pool at an angle of incidence of 25°. Calculate the angle of refraction of the light inwater.
2. Light entering a block of glass at an angle of incidence of 20.5° leaves the boundary between the air and the glass at an angle of 14.0°. What is the index of refraction of this type ofglass?
3. Light is incident on diamond at an angle of 10.0°. If the refractive index of a diamond is n=2.4175, at what angle will itrefract in the diamond?
4. A transparent material has a refractive index of 1.35. What is the angle of incidence in air when the angle of refraction in the substance is40°?
5. What is the index of refraction of a material if the angle of incidence in air is 40° and the angleof refraction in the material is30°?
6. Arayof light passes from water in to car bond is ulphide (nd=1.63) with an angle of incidence of 38°. What is the angle of refraction in the carbondisulphide?
7. A ray of light travels from air into water (n = 1.33) then into glass ( n= 1.50 ) as shown in the diagram. Find the angle of refraction in theglass.
For questions 8 - 10, assume the other medium is air.
8. Calculate the critical angle fordiamond (n=2.4175).
9. What is the critical angle for a glass that has an index of refraction of 1.57?
10. A certain material has a critical angle of 37.0°. What is its index ofrefraction?