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Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 20 cm apart. The sound intensity decreases as the distance between the speakers is increased, reaching zero at a separation of 30 cm.

a. What is the wavelength of the sound?

b. If the distance between the speakers continues to increase, at what separation will the sound intensity again be a maximum?

Ā 

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B. Haranadh Kumar
B. Haranadh KumarLv10
7 Nov 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Two loudspeakers 6.0 m apart are playing the same frequency. If youstand 12.0 m in front of the plane of the speakers, centeredbetween them, you hear a sound of maximum intensity. As you walkparallel to the plane of the speakers, staying 12.0 m in front ofthem, you first hear a minimum of sound intensity when you aredirectly in front of one of the speakers.

Part A)
What is the frequency of the sound? Assume a sound speed of 340m/s.
I got 120.02 Hz. This is right, I checked.

Part B)
If you stay 12.0 m directly in front of one of the speakers, forwhat other frequencies between 100 Hz and 700 Hz is there a minimumsound intensity at this point?

Express your answer numerically. If there is more than one answer,enter your answers in ascending order separated by commas.

Sorry, I can't figure out this part B! Thanks so much.

6) Two loud speakers, A and B, are seperated by a distance of 2.0m. The speakers emit sound waves at a frequency of 680Hz that are exactly out of phase. The speed of sound is 343m/s. How far from speaker A along the +x axis will a point of constructive interference occur?

Two loudspeakers, A and B, are driven by the same amplifier andemit sinusoidal waves in phase. Speaker B is 2.00 m to the right ofspeaker A. The frequency of the sound waves produced by theloudspeakers is 206 Hz. Consider Point P between the speakers andalong the line connecting them, a distance x to the right ofspeaker A. Both speakers emit sound waves that travel directly fromthe speaker to point P.
a) For what values of x will destructive interference occur atpoint P?
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