1. Light refracts when it travels from one medium to another. Explain why. What
ID: 2035951 • Letter: 1
Question
1. Light refracts when it travels from one medium to another. Explain why. What principle explains this behavior? 2. Given that the speed of light in a given medium is 1.3 x 10 m/s, find the index of refraction, n, for that medium 71 /2 112 For questions 3-5, consider the figure given above in which light (f 4.5 x 1014 Hz) travels from medium I to medium 2. The index of refraction for medium 1 and 2 are 1.3 and 1.7, respectively. The angle of incidence 0, is 68". 3. What is the frequency in medium 2? 4. What is the velocity of light in medium 2? 5. Find the angle of refraction, 6,. (Show work.)Explanation / Answer
2.
Speed of light in a medium is given by:
v = c/n
n = refractive index
n = c/v = 3*10^8/(1.3*10^8)
n = 2.31
3.
Frequency does not depend on the medium, So it will be same for both mediums
frequency in medium 2 = 4.5*10^14 Hz
4.
v2 = c/n2
v2 = 3*10^8/1.7
v2 = 1.76*10^8 m/sec
5.
Using snell's law:
n1*sin A1 = n2*sin A2
A2 = arcsin ((n1/n2)*sin A1)
A1 = angle of incidence = 68 deg
A2 = arcsin ((1.3/1.7)*sin 68 deg)
A2 = 45.15 deg
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.