Concept explainers
The relative minima of sound pressure located on the joining the two speakers.
Answer to Problem 70PQ
The relative minima of sound pressure located on the joining the two speakers are
Explanation of Solution
Write an expression for the space between the nodes.
Here,
Write an expression for the wavelength.
Here,
Substitute equation (II) in figure (I).
For speakers vibrating in phase, the antinode of the pressure is the point halfway between the speakers.
Write the expression for the distance of antinode of pressure from each speaker.
Here,
There is a node one quarter of a wavelength away.
Write an expression for the distance of the node.
Here,
After the node, there is a node one quarter of a wavelength.
Write an expression for the nodes.
Here,
Figure 1 shows the position of minimum between the speaker.
Conclusion:
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Thus, the relative minima of sound pressure located on the joining the two speakers are
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Chapter 18 Solutions
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