Total internal reflection - Ray optics and optical instruments
A light ray enters a solid glass sphere of refractive index at an angle of incidence . The ray is both reflected and refracted at the farther surface of the sphere. The angle (in degrees) between the reflected and refracted rays at this surface is _______
At A:
At B:
So angle between reflected ray & refracted ray at
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A light ray from air is incident (as shown in figure) at one end of a glass fiber (refractive index = 1.5) making an incidence angle of 60° on the lateral surface, so that it undergoes a total internal reflection. How much time would it take to traverse the straight fiber of length 1 km
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