Physical Optics
Physical Optics
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In our eReader you can find the full English version of the book. Read Physical Optics Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Physical Optics
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To quickly assess the difficulty of the text, read a short excerpt:
Let e f (fig. 89) be a section of the grating perpendicular to the length of the rectangles, and let us suppose that the breadth of a rectangle is just equal to the distance between it and the next, so that e f is composed ofa number of equal parts, Mj m„ m,o, om,', &c., which are alternately transparent and opaque. Let o p, and ;86 Physical Optics.
[Chap. VII.
M, Pj be the paths of the two rays travelling from o and Mj resi>ectively to the point Pj. These two are by hypothesis parallel, for p,... is either distant or in the focal plane of a lens through which all the light passes. Let o R be perpendicular from o on M, Pj. Then m, r is the difference of path between o and Pj and Mi and p, respectively. Let us sup- pose that Ml R = -. Then the light coming from the ele- ment o M, is exactly opposite in phase to that which would reach Pj from the next element m^ Mj. But, by hypothesis, Fig. 89, this element is opaque. The light reaching p, from Mj M3 is in the same phase as that from o m,, and so on.
What to read after Physical Optics?
You can find similar books in the "Read Also" column, or choose other free books by Glazebrook, Richard, Sir, 1854-1935 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Let e f (fig. 89) be a section of the grating perpendicular to the length of the rectangles, and let us suppose that the breadth of a rectangle is just equal to the distance between it and the next, so that e f is composed ofa number of equal parts, Mj m„ m,o, om,', &c., which are alternately transparent and opaque. Let o p, and ;86 Physical Optics.
[Chap. VII.
M, Pj be the paths of the two rays travelling from o and Mj resi>ectively to the point Pj. These two are by hypothesis parallel, for p,... is either distant or in the focal plane of a lens through which all the light passes. Let o R be perpendicular from o on M, Pj. Then m, r is the difference of path between o and Pj and Mi and p, respectively. Let us sup- pose that Ml R = -. Then the light coming from the ele- ment o M, is exactly opposite in phase to that which would reach Pj from the next element m^ Mj. But, by hypothesis, Fig. 89, this element is opaque. The light reaching p, from Mj M3 is in the same phase as that from o m,, and so on.
What to read after Physical Optics?
You can find similar books in the "Read Also" column, or choose other free books by Glazebrook, Richard, Sir, 1854-1935 to read onlineMoreLess
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