For one approach to problems such as this, see Multiple-Concept Example 3. Sound emerges through a doorway, as in Figure 17.10.The width of the doorway is 75 cm, and the speed of sound is 343 m/s. Find the diffraction angle when the frequency of the sound is(a) 5.0 kHz and (b) 5.0 × 10² Hz.RoomVibrating air moleculelocated in the doorwayFigure 17.10 Each vibrating molecule of the air in the doorway generates asound wave that expands outward and bends, or diffracts, around the edges ofthe doorway. Because of interference effects among the sound wavesproduced by all the molecules, the sound intensity is mostly confined tothe region defined by the angle on either side of the doorway.The highfrequencies arebeamed forwardinside this cone9.4°68⁰

To find the diffraction angle θ for a sound wave passing through a doorway, we can use the following…

For one approach to problems such as this, see Multiple-Concept Example 3. Sound emerges through a doorway, as in Figure 17.10. The width of the doorway is 75 cm, and the speed of sound is 343 m/s. Find the diffraction angle when the frequency of the sound is (a) 5.0 kHz and (b) 5.0 x 10² Hz. 300 Vibrating air molecule located in the doorway Room

For one approach to problems such as this, see Multiple-Concept Example 3. Sound emerges through a doorway, as in Figure 17.10. The width of the doorway is 75 cm, and the speed of sound is 343 m/s. Find the diffraction angle when the frequency of the sound is (a) 5.0 kHz and (b) 5.0 x 10² Hz. 300 Vibrating air molecule located in the doorway Room

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

For one approach to problems such as this, see Multiple-Concept Example 3. Sound emerges through a doorway, as in Figure 17.10.
The width of the doorway is 75 cm, and the speed of sound is 343 m/s. Find the diffraction angle when the frequency of the sound is
(a) 5.0 kHz and (b) 5.0 × 10² Hz.
Room
Vibrating air molecule
located in the doorway
Figure 17.10 Each vibrating molecule of the air in the doorway generates a
sound wave that expands outward and bends, or diffracts, around the edges of
the doorway. Because of interference effects among the sound waves
produced by all the molecules, the sound intensity is mostly confined to
the region defined by the angle on either side of the doorway.
The high
frequencies are
beamed forward
inside this cone
9.4°
68⁰

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