A loudspeaker having a diaphragm that vibrates at 1250 Hz is traveling at 80 m/s directly toward a pair of holes in a very large wall in a region for which the speed of sound is 344 m/s. You observe that the sound coming through the openings first cancels at 11.4 deg with respect to the original direction of the speaker when observed far from the wall. How far apart are the two openings? What angles would the sound first cancel if the source stopped moving?

Q: The acoustical system shown in the figure is driven by a speaker emitting sound of frequency 620 Hz.…

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Q: Two fire alarms are placed in a building, one 3.1 m north of the other. A person sitting at a desk…

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Q: 101 speakers with a spacing of one meter between adjacent speakers form a line 100m long on the…

A: Given: P=2500 W 101 speakers with a spacing of one meter between adjacent speakers from a line 100 m…

Q: A student connects a speaker to the signal generator and sets the frequency to 500 Hz. He notices…

A: Given information: The frequency of the signal generator (f) = 500 Hz The length at which the first…

Q: You're standing next to a concrete wall with a speaker. You place the speaker 12 m away from you and…

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Q: A sound interference pattern is shown below. What is the path-length difference from the two…

A: We need to find the path length for the given image.

Q: Two out of phase loudspeakers are some distance apart. A person stands 5.40 m from one speaker and…

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Q: When sound passes through a doorway, it spreads out much more on the other side than light would.…

A: We know that the more the wave deflects from objects in the room, the more it will spread in it. we…

Q: Two waves interact at a point 15.0 m from one source, and 22.4 m from the other. At this location,…

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Q: The figure shows an air-filled, acoustic interferometer, used to demonstrate the interference of…

A: To solve this problem, we'll need to understand the concept of destructive and constructive…

Q: Two sound waves interfere with each other. One has a frequency of 445 Hertz, the other is 461 Hz.…

A: Given  Frequency of first wave f1 = 445 Hz  Frequency of second wave f2 = 461 Hz  Speed of sound v =…

Q: You shout “hello” into an echo chamber that is 250 m long. Assuming that the speed of sound is 340…

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Q: A student does the Quincke tube experiment in a chamber filled with an unknown gas. The sound has a…

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Q: You should hello into an echo chamber that is 250 m long. Assuming that the speed of sound is 340…

A: length of the echo chamber, d = 250 m speed of the sound , Vs = 340 m/s no damping of sound is there

Q: There are two loudspeakers 3.0 m apart and both are playing a 686 Hz tone in phase. The speed of…

A: Given, frequency f=686 Hz velocity v=343 m/s distance between two loudspeakers d=3 m Solution a)…

Q: Two side-by-side loudspeakers at the origin emit 684 Hz sound waves on a day when the speed of sound…

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Q: Two identical speakers, labeled Speaker 1 and Speaker 2, are playing a tone with a frequency of 255…

A: The frequency = 255 HzThe velocity = 343 m/sThe wavelength = 343/255=1.345mNow the path difference…

Q: 2. Two similar loudspeakers are located 5.0 m apart at the front of an open-air theater. A musical…

A: This  question can be solved easily by applying the concept of waves and the interference concept…

Q: c) [ A Doppler ultrasound is used to measure the motion of blood in a patient's artery. The probe…

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Q: Two out of phase loudspeakers are some distance apart. A person stands 5.30 m from one speaker and…

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Q: Suppose that the separation between two speakers A and B is 5.20 m and the speakers are vibrating…

A: An observer is sitting directly in line of speaker B while another speaker, Speaker A is aligned…

Q: Sound (speed = 343 m/s) exits a diffraction horn loudspeaker through a rectangular opening like a…

A: We have  givenSpeed (v)=343 m/sWidth (d)=0.070  mFrequency (f)=11000 Hz

Q: A wave with a length of 5m will likely experience more diffraction than a wave with a length of 5mm.…

A: Diffraction is the bending of waves around obstacles and spreading waves as they pass through small…

Q: Two loudspeakers are placed in line with each other in a 20°C room. Both speakers emit soundwaves of…

A: In the following problem, Temperature of the room, T=20°C Frequency of the sound wave, f=857.5 Hz

Q: Consider that a patrol is moving with a velocity of 80 m / s towards a wall that is to the right, if…

A: The velocity of the patrol v=80 m/s. The frequency of the patrol siren fA=300 Hz. The speed of the…

Q: An oceanic depth-sounding ship surveys the ocean bottom near the Mariana Trench, the deepest known…

A: (given) Travelling speed (v) of ultrasonic sounds in sea water = 1430 m/s Time (t) = 15.4 s t is the…

Q: You are in a room with two speakers that emit sound in phase. You are 12.0 m from the first speaker…

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Q: A sound wave propagates at the speed of 4500 m/s in Medium 1 that has density of 2.6 g/cm3. What…

A: The acoustic impedance of medium 1 of density ρ1 in which the speed of sound is c1 is given by:

Q: Problem 4: Two identical loudspeakers send identical sound waves out to a listener at x = 20 m. The…

A: Step 1: Data provided in the problem Position of speaker one (0,0) m, Position of speaker two…

Q: For sound waves, the Doppler formula for frequency shift differs slightly between the two…

A: For the two situations given, formulas differ for sound. Sound waves can engender just through a…

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.