<transcript><audio_9>is made up of plastic and this is now transmission of light in an optical fiber is based on</transcript><transcript><audio_10>the phenomenon of total internal reflection and this is the basic principle of optical fiber by this principle only light can travel for a very long distance as i told you before in the previous</transcript><caption><image_11>The image is a slide from a presentation about the basic principle of fiber optics. It has a white background and black text. The title of the slide is "Basic Principle of Fiber Optics". Below the title, there is a subtitle that reads "The transmission of light in an optical fibre is based on the phenomenon of total internal reflection. Optical fibre consists of inner most layer known as core, a denser medium and next layer is known as cladding a rare medium." 

The slide is divided into two sections. The first section explains that optical fiber is a type of fiber optic that is used to transmit light from one source to another. The second section explains how optical fiber can be used in a variety of applications, such as optical imaging, optical photography, and optical photography.</caption><transcript><audio_12>slide as well the optical fiber consists of innermost layer known as a core which is a dense made up of dense denser medium the next layer is known as cladding which is a rarer medium so</transcript><caption><image_13>The image is a diagram of a total internal reflection, which is a type of reflection that travels from denser medium to river medium. The diagram shows a rectangular prism with a red circle in the center and a blue line intersecting it. The red circle is the focal point of the prism, and the blue line is the outermost point. The text above the diagram explains that when the light ray travels from denier medium to the river medium, the refracted ray bends away from the normal angle of incidence is greater than the critical angle, the reflected ray begins to reflect the same medium. This phenomenon is called total internal reflections.</caption><transcript><audio_14>we have already know this concept about when the light traveling from the denser medium to the rarer medium the refracted rays bends away from the normal and when the angle of incident of that</transcript><transcript><audio_15>light which is inserting incident or traveling from the denser medium to the rarer medium the angle of incidence is when the angle of incident is greater than the critical angle the refracted</transcript> is made up of plastic and this is now transmission of light in an optical fiber is based on the phenomenon of total internal reflection and this is the basic principle of optical fiber by this principle only light can travel for a very long distance as i told you before in the previous slide as well the optical fiber consists of innermost layer known as a core which is a dense made up of dense denser medium the next layer is known as cladding which is a rarer medium so we have already know this concept about when the light traveling from the denser medium to the rarer medium the refracted rays bends away from the normal and when the angle of incident of that light which is inserting incident or traveling from the denser medium to the rarer medium the angle of incidence is when the angle of incident is greater than the critical angle the refracted
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