A small spherical sound source is radiating 1 watt of single frequency (1000HZ) sound power into free space. Calculate the following at a distance of 0.3m.

Q: How to convert 111 dBSIL to mW/m2

A: Given, Sound level = 111 dBSIL To convert dBSIL to W/m2 we use this conversion as 1 dB = 1 × 10-12…

Q: The low-frequency speaker of a stereo set has a surface area of 0.06 m2 and produces 1 W of…

A: Given :      Surface area, A1  = 0.06 m 2      Power, P = 1 W     Intensity, I = 0.24 Wm2

Q: If the speed of sound is 350 m/s and the wavelength is 35 cm, what is the frequency? Select one: O…

A: Speed of the sound wave, c = 350 m/s Wavelength of the wave, L = 35 cm = 0.35 m

Q: The decibel is defined as ten times the logarithm of power gain, expressed as power out over power…

A: Solution:-Given thatdB=10 logPoutPinwhere dB=dBSIL; when Pin=10-12 W/m2dBSIL=1131 W=1000 mW

Q: Your teacher speaks with a sound intensity of 1.5×10−71.5×10−7 W/m2. What is the intensity level in…

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Q: A loudspeaker is placed near the open end of a pipe length 417 mm closed at its other end. The…

A: Length of pipe (L) = 417 mm = 0.417 m Lowest resonant frequency = 228 Hz

Q: A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies…

A: Increase in dB level, B2 - B1 = 30.0 dB The intensity picked up by the hearing aid, I1 = 3.9×10-10…

Q: Humans can detect frequencies as high as 20 000 Hz. Assuming the speed of sound in air is 344 m·s−1,…

A: Given: The upper range of hearing: f=20,000 [Hz]=20,000 [s-1] Speed of sound: v=344 [m/s]…

Q: The wavelength of sound emitted by a source is 1.2m. Calculate the frequency of this sound if its…

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Q: The intensity at a certain location is 1.021 W/m2. What is the sound intensity level at this…

A: Intensity of sound at a certain location (I) = 1.021 Wm2

Q: A standard trumpet has a resonant tube length of 1.4 m and is closed at one end. What are the first…

A: A standard trumpet has a resonant tube of length is l=1.4 mThe tube is closed at one end.In this…

Q: How far must one stand from a 4 mW point sound source if the intensity at that location is at the…

A: Given, Power = 4mW

Q: You are standing 4 m away from a speaker and experience a sound level that is 90 dB. What is the…

A: distance (d) = 4 m sound level = 90 dB

Q: What is the speed of sound (in m/s) in a medium where a 189 kHz frequency produces a 0.614 cm…

A:

Q: The frequency of G, on the piano is 196.0 Hz. (a) What is the wavelength (in m) of sound with this…

A: Given data as per question frequency   =196Hz

Q: The power of the sound produced by the sound source is 10 mW. The observer is at a distance of 2.5 m…

A:

Q: A typical adult ear has a surface area of 2.1×10-3m2. The sound intensity during a normal…

A: Area, A = 2.1×10-3 m²Intensity, I = 3.2×10-6 W/m²Power, P = ?

Q: A sound wave has a frequency of 632 Hz in air and a wavelength of 0.51 m. What is the temperature of…

A: Given, frequency = 632 Hz wavelength = 0.51 m We know, c is the speed of sound

Q: A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If…

A: Given Data: The initial intensity of a sound is, Ii=2×10-5 W/m2 The amplitude increases the…

Q: The table gives an estimate for the sound intensity of a whisper at 1.0 m. What is the sound…

A:

Q: Calculate the frequency of the first overtone of a 2 m pipe closed at one end. Take the speed of…

A: Given: The speed of the sound is 340 m/s. The length of the one-end closed pipe is 2 m.

Q: The intensity of the sound from a certain leaf blower is measured at  25 × 10−2 W/m2.  Find the…

A: The intensity of the sound is I = 25×10-2 W/m2

Q: he amplitude of a sound wave is measured in terms of its maximum gauge pressure. By what factor does…

A: Given: The sound level is ∆β=36 dB. The expression for sound level is: ∆β=10 dBlog10A2A12 Here, A1…

Q: A sound wave in air has a pressure amplitude of 4.00 Pa and a frequency of 5.00 kHz. Take P  0 at…

A: Given: Pressure amplitude for a sound wave is pmax=4 Pa when x=0. Frequency of the sound wave is…

Q: at a distance of 4 m from a fan exerting 50W of mechanical energy, estimate the sound level if the…

A: distance (d) = 4 m Power of fan (P) = 50 W Io = 10-12 Wm2

Q: Calculate the frequency (in Hz) of the fundamental note emitted by an open pipe of length 1.4 m. The…

A:

Q: What frequency of sound traveling in air at 208C has a wavelength equal to 1.7 m, the average height…

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Q: A particular sound wave can be modeled by the equation y=-3x sin 4x. Determine the amplitude and…

A: The equation of the sound wave is given by:y=−3xsin(4x)In this equation, sin(4x) represents a…

Q: he intensity sound level in air is 65 dB. Calculate Pmax if the temperature is 20 C, the density of…

A:

Q: A sound wave propagates in air at 27°C with frequency 4.00 kHz. It passes through a r where the…

A: Given Initial temperature T1 = 27 o C = 27+273 = 300 K Final temperature T2 = 0 o C = 273 K

Q: How far must one stand from a 2.2 mW point sound source if the intensity at that location is at the…

A: Given Data : The power of the point source is given as P = 2.2mW.

Q: The sound intensity level of 9 m from a large power saw is 89 dB. At what distance(in meters) will…

A: (given) Sound intensity level at distance (r1)= 9 m Power saw β1 = 89 dB More tolerable intensity…

Q: How far must one stand from a 3.8 mW point sound source if the intensity at that location is at the…

A: The threshold intensity for the human ear is 0 DB. that means intensitt is  I = 1.0 x 10-12 w/m2 .

Q: e approxima

A: Given: Temperature is 20oC Frequency is 262 Hz Speed of sound in air is 344 m/s

Q: Fifty metres from an alarm the sound level is 103 dB. To what sound intensity does this correspond…

A: Given, Loudness,

Q: The sound wave propagating through air has a frequency of 1 kHz and a pressure wave amplitude of 10…

A:

Q: Describe how you would calculate the wavelengths of sounds at the extremes of the audible range, 20…

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Q: The sound intensity level of a device is 2.00×10−2 W/m2. Convert this sound intensity level to…

A: Intensity of the sound level is I = 2.00×10−2 W/m2

Q: A piano tuner uses a tuning fork that emits sound with a frequency of 440 s-1 . Calculate the…

A: Given, Frequency of tuning fork f = 440 s-1  Velocity of sound v = 343 m/s Distance travel by sound…

Q: If the sound intensity level of a plane engine is 140 dB above the threshold of hearing. The sound…

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Q: Q:A- Calculate the sound level in dB of a sound intensity 10-8 Wm-2

A:

Q: The higher frequency limit for human hearing is 23.9  kHz. If the air temperature is 12.2 °C, the…

A: