What sound intensity levels must sounds of frequencies 60, 3000, and 8000 Hz have in order to have the same loudness as a 40-dB sound of frequency 1000 Hz (that is, to have a loudness of 40 phons)?

Q: What is the intensity of a sound that has an intensity level of

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Q: Approximately how many times louder is a  125-dB  sound than a  65-dB  sound?

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Q: Calculate the wavelengths of sounds at the extremes of audible range, 20 and 20000Hz, in 30.0o C…

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Q: Approximately how many times louder is a 160-dB sound than a 90-dB sound?

A: Answer the following question is

Q: When one person was talking in a small room, the sound intensity level is 57 dB everywhere within…

A: Intensity of one person = I Intensity level = 10*log(I/Io) = 57 Io = threshold intensity = 10^-12…

Q: A particular noise may sound louder or softer depending on the frequency of the sound wave being…

A: Given:

Q: When one person was talking in a small room, the sound intensity level is 49 dB everywhere within…

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Q: The smallest change in sound level that can be detected by a person with normal hearing is 1 dB.…

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Q: What is the intensity of a 62-dB sound-level?

A: We have to find the intensity of sound . and sound level (β) = 62 dB is given in the question.…

Q: Approximately how many times louder is a 140-dB sound than a 90-dB sound? The answer 100,00 is…

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Q: A sound is measured at a distance of 20 ft to have a decibel level of 100 dB. What would the decibel…

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Q: The decibel level 3 m from a source of sound is 105 dB? What is the decibel level 9 m from the…

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Q: (a) Find the intensity in watts per meter squared of a 60.0-Hz sound having a loudness of 60 phons.…

A: (a) The loudness (β1) level corresponding to 60 Hz frequency and 60 phons is approx 75 dB (from the…

Q: The lowest pitch that the average canine ear can identify is 40 Hz. If sound with this frequency…

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Q: The sound intesity measured 5m from a jet engine is 10 W/m2. What is the corresponding sound level?

A: The sound level 5 cm from a jet engine= 10 watt/sq.mThe intensity that least audible be human ear =…

Q: A person standing a certain distance from seventeen identical loudspeakers is hearing a sound level…

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Q: (a) During lunch 11B produces a sound level of 75-dB, what is the intensity of sound? (b) What would…

A: (a) The sound pressure level (L) be defined as, LdB=10log10II0 Here, I is the intensity of sound. I0…

Q: Name the unit used to measure the sound level. What is the safe limit of sound level in dB for our…

A: The loudness of the sound is defined as the responds of sound to our ear. It also tells about the…

Q: Using the sound level versus frequency plot with equal-loudness curves shown below, calculate the…

A: Given Frequency  = 100 Hz Loudness   = 80 phons

Q: A DJ is setting up their equipment and measures the sound level near a speaker to be 79dB. They…

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Q: A clarinet player is sounding a sustained tone of 264 Hz. A second player sounds what he intends to…

A: Given:First frequency,f1=264 HzBeat frequency,fbeat=4 beat/secondFind second frequency,f2Now, Beat…

Q: Approximately how many times louder (i.e., Sound Level) is a 100‐dB sound than a 60‐dB sound?…

A: Recall β=10dBlog(I/I0)

Q: (a) Find the intensity in watts per meter squared of a 100 Hz sound having a loudness of 50 phons.…

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Q: If a sound is perceived as being 8x louder than a 33 dB sound. What is the decibel level of the…

A: Given:If a sound is perceived as being 8x louder than a 33 dB sound.Find the decibel level of the…

Q: A person standing a certain distance from eighteen identical loudspeakers is hearing a sound level…

A: Given  18 Identical loudspeakers with sound level intensity of 117 dB To find out Sound level…

Q: What is the total sound level produced by the combination of an 80 dB sound and an 85 dB sound?

A: Sound level β in decibels is given by, β=10 logII0 where I is intensity of the sound and I0 is the…

Q: A whale makes a sound in the water with a frequency of 300 Hz sound moves at a speed of 1400 n/s in…

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Q: Approximately how many times louder is a 130-dB sound than a 70-dB  sound?

A: Solution: given that S1 = 130-dB S2 = 70-dB  how many times louder is S1 from S2

Q: (a) If the sound intensity of a person’s whisper if 10-11 W/m2 , what would be the level of…

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Q: Fifty metres from an alarm the sound level is 104 dB. To what sound intensity does this correspond…

A: Suppose the sound level of an alarm clock at 50 meters away is 104 dB. The intensity (I0) of the…

Q: : How many times louder is a 60-dB sound than a 10-dB sound? DB is calculated by taking 10 10 : 10…

A: Given values: db1=60 dBdb2=10 dB

Q: When one person was talking in a small room, the sound intensity level is 59 dB everywhere within…

A: B1 = 59 dB To find = Resulting sound intensity level if all 8 people started talking simultaneously