13. Sound waves are longituidinal waves with regions of compressions and refractions as shown in Fig. 8. 隱 Figure 8 What

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13. Sound waves are longituidinal waves with regions of compressions and refractions as shown in Fig. 8. 隱 Figure 8 What is the distance between adjacent centers of compression and refraction for a sound wave in terms of its wavelength? How does the air pressure in a sound wave vary with distance? 14. Sound waves from inside a room are moving towards an open window. The width of the window opening is about 1.5 meter. Explain which sound will diffract more at the window: high-pitch music at a frequency of 5000 Hz or people talking at a frequency of 120 Hz.