HW14 - the light travel in the second medium than the...

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1 Homework 14 1. Yellow light travels 0.680 times as fast in a certain type of plastic than in a vacuum. What is the index of refraction for yellow light in the plastic? 2. Red light travels at 2.07×10 8 m/s in a particular type of oil. What is the index of refraction for red light in the oil? 3. A beam of light travels from a medium with an index of refraction of 1.25 to a medium with an index of refraction of 1.46. If the incoming beam makes an angle of 14.0° with the normal, at what angle from the normal will it refract? 4. A beam of light travels from a medium with an index of refraction of 1.65 to a medium with an index of refraction of 1.30. If the beam refracts at an angle of 23.5° from the normal, at what angle to the normal did it enter the second medium? 5. A beam of light travels from one medium to another, with the incident beam making an angle of 19.0° from the normal. The beam then refracts at an angle of 32.0°. How many times faster does
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Unformatted text preview: the light travel in the second medium than the first? 6. A glass of water ( n = 1.33) has a layer of vegetable oil ( n = 1.47) floating on top. A beam of light enters the oil from above the glass with an incident angle of 57.0. What is the refraction angle of the light leaving the oil-water interface? 7. A ring consists of a diamond ( n = 2.42) and another jewel mounted side by side on a flat plate. Their top surfaces are also parallel to the plate. When laser light is aimed at the ring at 80.0 to the normal, the refraction angle in the diamond is 11.1 less (from the normal) than the refraction angle in the other jewel. What is the index of refraction of this other jewel? 8. A point source of light is at the bottom of a koi pond, at a depth of 0.525 meters. What is the radius of the circle of light formed on the water's surface? Take the index of refraction of water to be 1.33....
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This note was uploaded on 05/06/2008 for the course PHYS 1304 taught by Professor Ye during the Spring '08 term at SMU.

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