I e) The figure below shows part of the path of a ray of light, PQR,...

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I e) The figure below shows part of the path of a ray of light, PQR, travelling through an optical fibre. The optical fibre consists of a fibre of denser transparent material, coated with a layer of less dense transparent material. The left side of the fibre is horizontal while the right side of the fibre is bent. 60 optically less dense material optically denser material P Light ray QR totally internally reflected at point R. Describe why the light ray reflects at point R. (Do not show calculations) I e) The figure below shows part of the path of a ray of light, PQR, travelling through an optical fibre. The optical fibre consists of a fibre of denser transparent material, coated with a layer of less dense transparent material. The left side of the fibre is horizontal while the right side of the fibre is bent. 60 optically less dense material optically denser material P Light ray QR totally internally reflected at point R. Describe why the light ray reflects at point R. (Do not show calculations)

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The light ray QR reflects at point R due to a phenomenon known as total internal reflection Total in... View the full answer