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A light ray entering an optical fiber surrounded by air is first refracted and then reflected as shown in Figure 25.55 . Show that if the fiber is made from crown glass, any incident ray will be totally internally reflected.
The maximum value $\theta_{2}$ can have is less than the angle need to ensure a total internal reflection in crown glass, any incident ray will be totally internally reflected.
Physics 103
Chapter 25
Geometric Optics
Reflection and Refraction of Light
University of Washington
Simon Fraser University
McMaster University
Lectures
02:51
In physics, wave optics is…
10:02
Interference is a phenomen…
01:21
A light ray entering an op…
02:10
$\bullet$$\bullet$ An opti…
07:40
(III) A beam of light ente…
04:49
(II) A ray of light, after…
11:23
01:05
A light ray is incident no…
02:12
$\bullet$$\bullet$ A ray o…
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A beam of light both refle…
01:02
A fiber-optic rod consists…
03:33
A light ray initially in w…
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04:23
A ray of light traveling i…
04:46
A light ray traveling in a…
01:33
02:17
The end faces of a cylindr…
01:07
A ray of light is travelin…
04:11
Additional ProblemsIn …
04:50
Total Internal Reflection<…
02:46
A ray of light is incident…
So here we have a fiber optics and the light is entering here into a fiber optics. So, um, this will go up refracting in, reflect back. So this is our data. So if they don't want and this is our fate or two so that, uh, that, too. And this is this is a worth they don't three. So we can write a critical angle using, infecting nexus of visa and to drive a in one. So in two years for air, then we can substitute the values one do over 1.52 for the glass. If the hammer optics excuse us there to see critical angle to be 41.3 degrees critical angle is equal. Thio. There's a tree which is a colt 41.3 degrees. Then we can find better to simply bomb 19 minus their 23 d cities over 48.87 degrees. So this authentic, then we can use the Snell's law and, uh so in one in one time sign that one is a call to end to sign That too. And we see here student values sign that the one we get here to be one point 13 so that 1.1 trees greater than one so that no one will be greater than 90 so the light will be totally in, generally reflected in the fiber.
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In physics, wave optics is the study of the behavior of light, or other elec…
Interference is a phenomenon in which two waves superpose to form a resultan…
A light ray entering an optical fiber surrounded by air is first refracted a…
$\bullet$$\bullet$ An optical fiber consists of an outer "cladding"…
(III) A beam of light enters the end of an optic fiber as shown in Fig. 23-5…
(III) A beam of light enters the end of an optic fiber as shown in Fig. $59 …
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