Rainbows from square drops. Suppose that, on some surreal world, raindrops had a square cross section and always tell with one face horizontal. Figure 33-56 shows such a falling drop, with a white beam of sunlight incident at θ = 70.0° at point P . The part of the light that enters the drop then travels to point A, where some of it refracts out into the air and the rest reflects. Thai reflected light then travels to point where again some of the light refracts out into the air and the rest reflects. What is the difference in the angles of the red light ( n = 1.331) and the blue light ( n = 1.343) that emerge at (a) point A and (b) point B ? (This angular difference in the light emerging at, say, point A would be the rainbow's angular width.) Figure 33-56 Problem 56.
Rainbows from square drops. Suppose that, on some surreal world, raindrops had a square cross section and always tell with one face horizontal. Figure 33-56 shows such a falling drop, with a white beam of sunlight incident at θ = 70.0° at point P . The part of the light that enters the drop then travels to point A, where some of it refracts out into the air and the rest reflects. Thai reflected light then travels to point where again some of the light refracts out into the air and the rest reflects. What is the difference in the angles of the red light ( n = 1.331) and the blue light ( n = 1.343) that emerge at (a) point A and (b) point B ? (This angular difference in the light emerging at, say, point A would be the rainbow's angular width.) Figure 33-56 Problem 56.
Rainbows from square drops. Suppose that, on some surreal world, raindrops had a square cross section and always tell with one face horizontal. Figure 33-56 shows such a falling drop, with a white beam of sunlight incident at θ = 70.0° at point P. The part of the light that enters the drop then travels to point A, where some of it refracts out into the air and the rest reflects. Thai reflected light then travels to point where again some of the light refracts out into the air and the rest reflects. What is the difference in the angles of the red light (n = 1.331) and the blue light (n = 1.343) that emerge at (a) point A and (b) point B? (This angular difference in the light emerging at, say, point A would be the rainbow's angular width.)
A parallel beam of light is incident at 300 to the normal to one face of an equilateral prism (n=1.53), the three faces of which are polished. Trace the path of the light through the prism and find the total deviation produced. For what angle of incidence will the deviation be a minimum?
Conceptual Physics: The High School Physics Program
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