Light travels from air into an optical fiber with an index of refraction of 1.44. (a) If the angle of incidence on the end of the fiber is 22 degree, what is the angle of refraction inside the fiber? (b) Light traveling through an optical fiber (n=1.44) reaches the end of the fiber and exits into air. (a) If the angle of incidence on the end of the fiber is 30 degree, what is the angle of refraction outside the fiber? (c) Calculate the critical angle of optical fiber and air interface

Light travels from air into an optical fiber with an index of refraction of 1.44. (a) If the angle of incidence on the end of the fiber is 22 degree, what is the angle of refraction inside the fiber? (b) Light traveling through an optical fiber (n=1.44) reaches the end of the fiber and exits into air. (a) If the angle of incidence on the end of the fiber is 30 degree, what is the angle of refraction outside the fiber? (c) Calculate the critical angle of optical fiber and air interface

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter25: Reflection And Refraction Of Light

Section: Chapter Questions

Problem 7OQ: Light traveling in a medium of index of refraction n1 is incident on another medium having an index...

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Light traveling in a medium of index of refraction n1 is incident on another medium having an index of refraction n2. Under which of the following conditions can total internal reflection occur at the interface of the two media? (a) The indices of refraction have the relation n2 n1. (b) The indices of refraction have the relation n1 n2. (c) Light travels slower in the second medium than in the first. (d) The angle of incidence is less than the critical angle. (e) The angle of incidence must equal the angle of refraction.
The index of refraction for water is about 43. What happens as a beam of light travels from air into water? (a) Its speed increases to 43c, and its frequency decreases. (b) Its speed decreases to 34c, and its wavelength decreases by a factor of 34. (c) Its speed decreases to 34c, and its wavelength increases by a factor of 43. (d) Its speed and frequency remain the same. (e) Its speed decreases to 34c, and its frequency increases.
A ray of light crosses the boundary between some substance with n = 1.46 and air, going from the substance into air. If the angle of incidence is 26◦ what is the angle of refraction?
A parallel sided plate of glass with an index of refraction of 1.60 is in contact with the surface of water (n=1.33) in a tank. A ray coming from above makes an angle of incidence of 30.0° with the normal to the top surface of the glass plate. (a) What is the speed of light in the glass plate? (b) What is the critical angle between the glass and the water? (c) What angle does this ray make with the normal in the water? (d) Include a diagram of the situation. [Diagram 3 pts.]
Light traveling through an optical fiber (n=1.44) reaches the end of the fiber and exits into air. (a) If the angle of incidence on the end of the fiber is 30°, what is the angle of refraction outside the fiber? (b) How would your answer be different if the angle of incidence were 50°? (c) What would be the speed of the light in optical fiber? (d) What would be the angle of refraction outside the fiber into water(refraction index n water = 1.33)?
A ray of light crosses the boundary between some substance with n=1.58 and air, going from the substance into air. If the angle of incidence is 17° What is the angle of refraction?
A ray of light crosses the boundary between some substance with n = 1.61 and air, going from the substance into air. If the angle of incidence is 18◦ what is the angle of refraction? Calculate to 1decimal.
The angle of incidence of a light beam in air onto a reflecting surface is continuously variable. The reflected ray is found to be completely polarized when the angle of incidence is 63.0°. (a) What is the index of refraction of the reflecting material? (b) If some of the incident light (at an angle of 63.0°) passes into the material below the surface, what is the angle of refraction? answer in degrees °
Light travels from air into an optical fiber with an index of refraction of 1.44. If the angle of incidence on the end of the fiber is 35o, what is the angle of refraction inside the fiber?
A beam of light strikes one face of a windowpane with an angle of incidence of 30.0°. The index of refraction of the glass is 1.52. The beam travels through the glass and emerges from a parallel face on the opposite side. Ignore reflections. (a) Calculate the angle of refraction for the ray inside the glass. (b) Show that the rays in the air on either side of the glass (the incident and emerging rays) are parallel to each other with the aid of a diagram. (c) Calculate the speed of the light in the glass.
A beam of light in air makes an angle of 30.0° relative to the surface of a diamond. The index of refraction for air is 1.000, and the index of refraction for diamond is 2.417. What is the angle of the light beam in the diamond, relative to the surface?
A ray of light in water (n = 1.33) strikes a submerged glass block at an angle of incidence of 55.0. The angle of refraction for the light that enters the glass is 37.0. Find (a) the index of refraction of the glass and (b) the speed of light in the glass.