Page 277 - The Master Handbook Of Acoustics
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252 CHAPTER ELEVEN
Source
20
Slit
10
10
A
100
80
Percentage of peak 60
40
20 B
0
20 10 0 10 20
Angle of deviation
B
FIGURE 11-6
A consideration of Pohl’s classic experiment in diffraction. (A) A very approximate sug-
gestion of the equipment arrangement (see text). (B) The broadening of the beam B by
1
diffraction. The narrower the slit the greater this broadening of the beam. (After Wood. )
