Two speakers separated by a distance of 8.00 m create sound waves in phase with each other. You are 6.00 m from one speaker and 10.00 m from the other speaker as shown in the figure. What is the lowest frequency at which you hear complete destructive interference? A. 43 Hz B. 64 Hz C. 86 Hz D. 107 Hz E. 128 Hz

Q: A single dog barks at a sound intensity level of β = 88 dB. a. Another dog runs up beside the first…

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Q: Consider two pipes of the same length one is open and the other is closed on one end If the…

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Q: For numbers 4 to 6, consider A sinusoidal wave travels along a string. The time for a particular…

A: We have given Maximum amplitude  of wave to 0 ist= 0.25 s

Q: The intensity of the waves from a point source at a distance d from the source is I. At what…

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Q: A 1.30-m string is held fixed at both ends. When driven by a 140-Hz source, the string vibrates in 4…

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Q: A researcher immerses a sound detector in water to record the sounds emitted by the animals. The…

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Q: Q1. Two waves travelling in the same direction are described by the wave functions: y1 (x,t) = 0.03…

A: Resultant of two wave.

Q: A train station bell gives off a fundamental tone of 500 Hz as the train approaches the station at a…

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Q: 5T Consider a wave described by the wave function y (x.f) = 0.75m sin s-1t+), find the time period…

A: Time period is T = 1/f  => T = 2πω = 2π3π7 => T = 4.67 s

Q: 1- Is Intensity an acoustic variable? A. True B. False

A: 1. yes ,intensity is acoustic variable.   ANS:True

Q: Given that the threshold of hearing is 10-16 W/cm2, the intensity of a sound wave with a power of…

A: Intensity of sound wave (I) = 10-12 Wcm2Threshold of hearing (Io) = 10-16 Wcm2

Q: 1. A 1.0 W point source emits sound waves isotropically. Assuming that the energy of the waves is…

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Q: An open tube produces the third harmonics sound of 600 Hz. Which of the following statement(s)…

A: Given that, third harmonics with frequency 600HZ

Q: In an acoustics lab you have a 60 m long pipe that contains very cold air, in fact T = – 46 °C.…

A: Length of pipe L = 60 m Temperature T = -46° C Wavelength of sound wave λ = 1.5 m   Time taken to…

Q: Two side-by-side (virtually no separation) speakers are wired such that they emit a single-frequency…

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Q: A glass of 20 m2 area with a sound transmission loss value of 30 dB is attached to a brick wall of…

A: The composite transmission loss of the wall is expressed by the following equation. Here, TL1 is…

Q: An experiment is being performed to establish the different frequencies produced by a cord. The cord…

A: Given data:  Frequency of seventh harmonic f7 = 240 Hz Required: The frequency of forth harmonic

Q: Assume that the opening of the ear canal has a diameter of 7.0 mm. For this problem, you can ignore…

A: Given: Assume that the opening of the ear canal has a diameter of 7.0 mm. For this problem, you can…

Q: A trumpet player is tuning his instrument by playing an A note simultaneously with the first-chair…

A: first player frequency = Fa = 440 Hz number of beats = 2.7 other player frequency = ?

Q: 14. You are standing 20.0m from one sound source and 60.0m from another. Both are outputting the…

A: In this problem first draw a diagram of source. S1 is first source and S2 is second source.…

Q: MCQ 2. Two harmonic waves are described by y₁ = (3 m)sin sin 700 x- m What is the amplitude of the…

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Q: An 180 dB sound can cause permanent hearing damage. By what factor is this larger than the quietest…

A: The quietest audible sound for human is 0 dB.

Q: 5.20 m from one speaker and 3.80 m from the other. What is the third lowest frequency at which…

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Q: arks at a sound intensity level of β = 95 dB. a. Another dog runs up beside the first dog and…

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Q: The D-string on a properly tuned guitar produces a tone with a fundamental frequency of 146.8 Hz.…

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Q: Two ultrasonic sound waves combine and form a beat frequency that is in the range of human hearing…

A: The beat frequency is given by Where f1 and f2 are frequencies of combining waves.

Q: Two loudspeakers, 4.0 m apart and facing each other, play identical sounds of the same frequency.…

A: We have to find the frequency of the sound. We know that △r=0.25 m

Q: The audible range for humans is ________. Choose one answer.   a. 20-20,000 Hz     b. less than 300…

A: Required:   Frequency range of audible sound for humans

Q: Two identical waves, moving in the same direction along a stretched string , interfere with each…

A: The amplitude of each wave is 10 cm and the phase difference between them is 180o

Q: The alto saxophone produces notes with a frequency range of around 125 Hz to 900 Hz. Determine the…

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Q: A person shouting at the top of his lungs emits about 1.0 W of energy as sound waves. Match the…

A: Given: The power of the sound waves emitted by the person shouting: P = 1.0 W.

Q: An oceanographer is reviewing data in his scienitific journal. He is analyzing the frequency of…

A: Time period T=2 secondsNumber of pass =2 peaks of wavesNow first i would like to tell that wave…

Q: You (point A) and your friend (point B) are holding in-phase speakers which emit sound with the same…

A: For minima, path difference should be equal to odd multiple of half of the wavelength.   ∆x…

Q: In the afternoon, the decibel level of a busy freeway is 100 dB with 100 cars passing a given point…

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Q: Doppler effect is not observed in  the sound wave. Choose one correct example from the given…

A: The correct answer is option (c).

Q: Select correct expressions for the frequencies of the first three overtones (ƒ1 , f2 and f3) of the…

A: Given:- The Fundamental frequency of the one end closed pipe is f0  The first three overtone…

Q: A traveling wave is y (m) shown on the right. What is the wavelength? A. 0.5 m B. 1 m C. 2 m D. 4 m…

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Q: a turning fork of frequency f=480 Hz has its first resonance when the water level is s distance…

A: Given that,The frequency of a tuning fork, f=480HzThe first resonance at the water level below the…

Q: a. Draw a schematic of the phasor representation of the three waves. b. Write the equation of the…

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Q: Question 4: A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a…

A: Question (4):The frequency emitted by the speaker is Beat frequency is Speed of sound is Find:Speed…

Q: Your ear simultaneously hears waves from different sources, so it can hear beats from the two…

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Q: an be produced in the tube? a.    2 b.    3 c.    4 d.    5 e.    6 f.    7 g.    8 h.    9 i.…

A: a. Consider the expression for frequency as:     f =nV2L     where, n is an integer…

Q: A sound wave of frequency 880 Hz and power 50.0 W creates loudness at a sound meter of 40.0…

A: In this question we have to find the increase in sound level. Please give positive feedback if the…

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.