Duff, A. Wilmer (Alexander Wilmer), b. 1864, ed, Guthe, Karl Eugen, 1866-1915, Hallock, William, 1857-1913, Lewis, E. Percival (Exum Percival), 1863-1925, Goodspeed, Arthur W. (Arthur Willis), b. 1860, Carman, Albert Pruden, b. 1861, McClung, Robert Kenning, 1874- · Philadelphia, P. Blakiston's Son & Co · leaf 426
sider the image of a narrowsource 5 (Fig. 290). At P^ and P„ on each side of P„ there will bea minimum if AP^ — BP„^=X = BP^ — AP^ in which case the dis-turbances from the two halves of the lens reach P^ and P^ in oppo-site phases and cancel each other. The width of the image, which INTERFERENCE.… … Fig. 290. ticular dimension of the image will be inversely proportional tothe same dimension in the source, as appears from the relation(§468). P,P, = 2PJ, = 2DX/AB Observation shows that two diffraction maxima cannot be clearlyseparated if they are closer than the distance from a maximum tothe…
Physics
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