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
bright band at Fq if onlythe two central half-period elements of an incident wave are exposed. Iftwo on each side are exposed the effect at Pq is A = 2ai — 2O2 (nearly zero) If three half-period elements on each side are exposed A = 201 — 3O2 -{• 20^ (maximum) INTERFERENCE. 407 Therefore there will… … Fig. 287. neutralize each other in pairs; if it subtends an odd number of such ele-ments, there will be destructive interference between pairs, leaving the oddone effective, consequently there will be a series of maxima and minimaon each side of the axis. It is easy to determine the width of the…
Physics
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