A common trick in fiber optics is to send several colors of light down the same fiber (this is a form of what's called multiplexing). Each color of light can carry a separate signal, letting you squeeze more information into your beam. This, of course, leaves you with the problem of how to separate the colors back out once your beam gets to where it's going. One way to do this involves total internal reflection. Specifically, the index of the glass n and the angular frequency of the light are related by n2=1+C/(w0^2−w^2−C where C = 443 x 10^30 rad^2/s^2 and w = 29.5 1015 rad/s. Since different colors of light see different indices of refraction, different colors of light will see different critical angles. Suppose we have a beam with yellow light (frequency = 3.20 x 10^15 rad/s) and red light (frequency = 2.90 x 10^15 rad/s) traveling through this glass. Eventually it’s going to hit a glass-air boundary. Required:At what angle of incidence should the light hit the boundary if we want the yellow light to stay in the glass and the red light to leave?
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Physics, 22.06.2019 17:00, marchellepenuliar
Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.
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Physics, 23.06.2019 02:30, MeTooFoodYum
Why does the liquid rise up through the dip tube when the valve is open
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A common trick in fiber optics is to send several colors of light down the same fiber (this is a for...
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