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 424
dth of the bands. If AP^ — BP-^ = \ (Fig.288) we may consider the effectsat P, of AO and OB to be nearly A|;^the same numerically, but to ^ ^ differ in average phase by halfa wave length. The two canceleach other. At Po, where AP2— 5P2 = |X, we may imaginethe slit divided into three nearlyequal… … Fig. PoPt •.D = \:AB Therefore 2PoP^ = 2D\ ab The other bands are of half this width, or D-X/AB. The width of all thebands is, therefore, inversely proportional to the width of the slit. The 4o8 LIGHT. central maximum is white, the others are narrow spectra bordered by violeton the inside, red on…
Physics
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