While connecting to a home theater system, a sound level meter detects a sound level of 70 dB when only one speaker is connected. Calculate the increase in the reading of the apparatus, when five additional speakers are connected.

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…

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Q: (a) Name each of the apparatus labelled X, Y and Z

A: Given:

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A: At bare minimum audible level for a given frequency is plotted in the figure below,     The formula…

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Q: (a) What are the loudnesses in phons of sounds having frequencies of 200, 1000, 5000, and 10,000 Hz,…

A: (a) From graph, it can see that the loudness in the phons of sound having frequencies of 200, 1000,…

Q: g)Suppose the current in Si is now I = 5cos (0.01591) Aalculate the rate of change of magnetic fiux…

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

Q: In audio and communications systems, the gain, ?, in decibels is defined for an amplifier as ? = 10…

A: Given: The gain in decibels is given as, β=10logPoutPin

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: 10-9. The following noise spectrum was obtained from a jet aircraft flying overhead at an altitude…

A: Your answer is 108dB

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A: Given data, Sound level of front speakers = 8.5 dB, 80 dB and 78 dB Sound level or rear speakers =…

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A: a) One decibel is defined as,

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

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Q: The factor of 10-12 in the range of intensities to which the ear can respond, from threshold to that…

A: Concept used: Largest distance that could be measured is inversely proportional to intensity range.

Q: Use your equation to determine the frequency at 2.5 seconds. (c) Use your equation to determine all…

A: given, maximum frequency = 800 Hz  minimum frequency = 240 Hz  maximum frequency occurs 3 times…

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

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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: A small reverberation chamber 8ftx9ft x10ft is employed to measure effective sound absorption…

A: Given data :L=8 ftW=9 ftH=10 ftt=5 sec or 1 secThe surface used to cover part s=40 ft2

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A: To determine: (a) The speed of sound in a medium. (b) What is the name of the substance for this…

Q: Loudspeakers can produce intense sounds with surprisingly small energy input in spite of their low…

A: Given:sound intensity level, β= 90.0 dBdiameter of the speaker, D = 12 cm ∴ Radius of speaker, R =…

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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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A: 1. In general, the  speed of sound on medium depends on how fast the energy is transferred through…

Q: (a) Ear trumpets were never very common, but they did aid people with hearing losses by gathering…

A: