Physics Review Question Unit: waves Year: 1996 Question#: 43 Question: The speed of light in a material is 2.5 x 108 meters per second. What is the absolute index of refraction of the material (1 ) 1.2 (2 ) 2.5 (3 ) 7.5 (4 ) 0.83 What is this question really asking? Explanation by: Joe W [ Return to question menu ] Answer 1 1.2 CORRECT Using the formula n= c/v, where n= absolute index of refraction, c= the speed of light in a vacuum, and v is the speed of light in the material, you get 1.2 return to top Answer 2 2.5 INCORRECT Try using the formula n= c/v, where n= absolute index of refraction, c= the speed of light in a vacuum, and v is the speed of light in the material. return to top Answer 3 7.5 INCORRECT Try using the formula n= c/v, where n= absolute index of refraction, c= the speed of light in a vacuum, and v is the speed of light in the material. return to top Answer 4 0.83 INCORRECT Try using the formula n= c/v, where n= absolute index of refraction, c= the speed of light in a vacuum, and v is the speed of light in the material. return to top What's this question really asking? What is the most that the wave will refract when it enters the medium and travels through it? return to top |
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