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Think & Prepare R' You have three unkowns in this problem, the angle of refraction R, the angle of refraction and n. and n. 1. Set-up Snell's Law equation relating e, R 2. Set-up the critical angle relationship between 0 and n 3.0+0 0 = ? R 4. You may need some trigonometric identities such as sin (90° - 0) = ? and sine = 2. cose b. In the problem above, the angle e increases. How does this affect what n must be to ensure total internal reflection? A) n will decrease because the critical angle will become larger B) n will decrease becuase the equation for the critical angle is proportional to 1/n of the material C) n will increase because the critical angle will become smaller D) n will increase becuase the equation for the critical angle is proportional to 1/n of the material OA ○ AB CD ○ AC ○ BD a. A ray of light enters a fiber optic cable with index of refraction n from air at an angle e as shown below. Let the angle 0 be 69°. For total internal reflection to occur at the cable-air interface, what must be the value of n? n = nair = 1 0 θα θα n

Think & Prepare R' You have three unkowns in this problem, the angle of refraction R, the angle of refraction and n. and n. 1. Set-up Snell's Law equation relating e, R 2. Set-up the critical angle relationship between 0 and n 3.0+0 0 = ? R 4. You may need some trigonometric identities such as sin (90° - 0) = ? and sine = 2. cose b. In the problem above, the angle e increases. How does this affect what n must be to ensure total internal reflection? A) n will decrease because the critical angle will become larger B) n will decrease becuase the equation for the critical angle is proportional to 1/n of the material C) n will increase because the critical angle will become smaller D) n will increase becuase the equation for the critical angle is proportional to 1/n of the material OA ○ AB CD ○ AC ○ BD a. A ray of light enters a fiber optic cable with index of refraction n from air at an angle e as shown below. Let the angle 0 be 69°. For total internal reflection to occur at the cable-air interface, what must be the value of n? n = nair = 1 0 θα θα n

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Think & Prepare R' You have three unkowns in this problem, the angle of refraction R, the angle of refraction and n. and n. 1. Set-up Snell's Law equation relating e, R 2. Set-up the critical angle relationship between 0 and n 3.0+0 0 = ? R 4. You may need some trigonometric identities such as sin (90° - 0) = ? and sine = 2. cose b. In the problem above, the angle e increases. How does this affect what n must be to ensure total internal reflection? A) n will decrease because the critical angle will become larger B) n will decrease becuase the equation for the critical angle is proportional to 1/n of the material C) n will increase because the critical angle will become smaller D) n will increase becuase the equation for the critical angle is proportional to 1/n of the material OA ○ AB CD ○ AC ○ BD
Transcribed Image Text:Think & Prepare R' You have three unkowns in this problem, the angle of refraction R, the angle of refraction and n. and n. 1. Set-up Snell's Law equation relating e, R 2. Set-up the critical angle relationship between 0 and n 3.0+0 0 = ? R 4. You may need some trigonometric identities such as sin (90° - 0) = ? and sine = 2. cose b. In the problem above, the angle e increases. How does this affect what n must be to ensure total internal reflection? A) n will decrease because the critical angle will become larger B) n will decrease becuase the equation for the critical angle is proportional to 1/n of the material C) n will increase because the critical angle will become smaller D) n will increase becuase the equation for the critical angle is proportional to 1/n of the material OA ○ AB CD ○ AC ○ BD
a. A ray of light enters a fiber optic cable with index of refraction n from air at an angle e as shown below. Let the angle 0 be 69°. For total internal reflection to occur at the cable-air interface, what must be the value of n? n = nair = 1 0 θα θα n
Transcribed Image Text:a. A ray of light enters a fiber optic cable with index of refraction n from air at an angle e as shown below. Let the angle 0 be 69°. For total internal reflection to occur at the cable-air interface, what must be the value of n? n = nair = 1 0 θα θα n
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