How headphone works? -This question was all about Sound interference, beats, Doppler effect, and density.
Q: (a) (i) State what is meant by the specific acoustic impedance of a medium. (ii) The density of a…
A: (a) (I) to define the specific acoustic impedance of a medium. (ii) to calculate the specific…
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Q: What is the sound level and intensity of a 120 W speaker located 10 m away? What if it were located…
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A: We know that the more the wave deflects from objects in the room, the more it will spread in it. we…
Q: A wave equation is y=0.1sin[100πt-kx] and wave velocity is 100m/s, its number is equal to __________…
A: C
Q: Sonic booms are most closely related to which of these phenomena? O doppler effect O two-point…
A: Sonic boom : A sonic boom is a constructive interference of sound wave created by an object moving…
Q: At a rock concert a dB meter registers 115 dB at a distance of 1.50 m from the stage, how far from…
A: Given Data Sound level at a distance r1=1.50 m is B1=115 dB We have to find the distance where the…
Q: A man is standing at a distance of 12m from a cliff. Will he be able to hear a clear echo of his…
A: The distance of a man from the cliff is given as d=12 m
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A: A string, held by its ends, when vibrated produces a standing wave pattern. This standing wave…
Q: Question When poked by a spear, an operatic soprano lets out a 1200-Hz shriek. What is Its…
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Q: An oboe player tunes the orchestra with the “Concert A” note, which has a frequency of 440 Hz. If…
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Q: How can we hear our own voice even after closing our ears?
A: There are two different ways people can heat their own sound. In first case, sound exits the mouth…
Q: How much faster does sound travel on a hot summer day, 40 °C, than on the coldest winter day, -40…
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Q: What is the resultant sound level when an 81-dB sound and an 87-dB sound are heard simultaneously?
A: Given data The first intensity is I1=81 dB The second intensity is I2=87 dB The net resultant sound…
Q: Why is it easier to measure the wave length using interference patterns rather than trying to…
A: The nth order bright fringe in an interference pattern has the location:dsinθ=nλ………(1)where,d is the…
Q: In a sound wave, a displacement node is a pressure antinode and vice versa, Why?
A: NodeNode is the point where amplitude of oscillation is minimum, i.e. displacement is minimum. We…
Q: Audible sound waves have frequencies ranging from 50 to 20000 Hz. Explain, with examples, how…
A: Frequency : Frequency is the number of times per second that a sound pressure wave repeats itself.
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: 19-9.47) An acoustic burglar alarm consists of a source emitting waves of frequency 28.3 kHz. What…
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Q: A car sounding its horn at 480Hz moves towards a high wall at a speed of 20m/s, the frequency of the…
A: C
Q: A sound wave traveling through a tube or string is a special case of a wave referred to as?
A: We know that, A standing wave is the combination of two waves moving in opposite directions with the…
Q: 3) Mr. Tait and Ms. Price, two expert mountain climbers, part way up a mountain, yelled out how much…
A: The velocity of an object is defined as the ratio of the displacement of the object to the time…
Q: The sound of distant horses can be heard by applying the ear to the ground , whereas it is inaudible…
A: The sound of distant horses can be heard by applying the ear to the ground , whereas it is inaudible…
Q: A dB meter registered 125 dB when it was placed 3.90 m in front of a speaker. (ii) Calculate the…
A: Calculate the sound intensity for 125 dB. dB=10logI1I0125=10logI110-12I1=3.16
Q: How many wavelengths are there on a string vibrating at its fundamental frequency
A: IF string one end is loose then then fundamental frequency we get at λ/4 , 5λ/4 , 7λ/4 ,...... . .…
Q: What is the attenuation of sound intensity by 1 cm of fat at 0.8 MHz?(HVT=6.9 CM)
A: The attenuation is given by the following expression.
Q: Can you tell that your roommate turned up the sound on the TV if its average sound intensity level…
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Q: 46) A point source emits sound with a power output of 100 W. What is the sound level (in dB) at a…
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Q: How much would the trombone player have to move the slider in cm to play 25 Hz ? Be sure you know…
A: Given, Frequency of the trombone, f = 25 Hz
Q: Show that the fundamental frequency of an open organ pipe is double that in case of a closed organ…
A: The open end of an organ pipe has an antinode, and closed-end has a node. The wave diagram for an…
Q: An organ pipe is open at one end and closed at the other end. If the fundamental standing…
A: An organ pipe is open at one end and closed at the other end.The fundamental standing wavelength is…
Q: When two waves combine so that their amplitude is zero (or much less than the original amplitudes),…
A: The problem is based on the concept that what will happen two waves combines. We know that two waves…
How headphone works?
-This question was all about Sound interference, beats, Doppler effect, and density.
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