Resonances of the ear canal lead to increased sensitivity of hearing, as we’ve seen. Dogs have a much longer ear canal— 5.2 cm—than humans. What are the two lowest frequencies at which dogs have an increase in sensitivity? The speed of sound in the warm air of the ear is 350 m/s.A. 1700 Hz, 3400 Hz                B. 1700 Hz, 5100 HzC. 3400 Hz, 6800 Hz                D. 3400 Hz, 10,200 Hz

Q: (a) When poked by a spear, an operatic soprano lets out a 1199 Hz shriek. What is its wavelength (in…

A: Here, In (a) We have to find the wavelength of a shriek of an operatic soprano, when poked by a…

Q: (II) (a) Determine the length of an open organ pipe that emits middle C (262 Hz) when the…

A: The frequency is defined as the number of occurrences in which the event is repeated per unit time.…

Q: uppose a low brass instrument, such as a tuba, has a fundamental frequency of 34.5 Hz.

A: Given: Fundamental frequency of tuba f1 = 34.5 Hz where tuba us a cylindrical tube closed at one…

Q: (II) What would be the sound level (in dB) of a sound wave in air that corresponds to a displacement…

A:

Q: a) Compute the wavelength in air of ultrasound with a frequency of 44 kHz if the speed of sound is…

A: Part A. use the following relation v=fλ here v is the speed of ultrasound wave f is the frequency λ…

Q: Two adjacent natural frequencies of an organ pipe are found to be 245 Hz and 315 Hz. (a) Calculate…

A:

Q: Two sinusoidal waves traveling in opposite directions interfere to produce a standing wave with the…

A: The equation for a standing wave is usually given by Here, the given standing wave has a wave…

Q: The human voice can be modelled as a clarinet i.e., a tube with one end closed and one end open.…

A: Calculate the wavelength of the sound produced in the closed tube. λ=4L=4×20 cm×10-2 m1 cm=0.8 m…

Q: A siren emitting a sound of frequency 1200 Hz moves away from you toward the face of a building at a…

A: Frequency of siren (f) = 1200 Hz speed of siren (v) = 10 msSpeed pf sound in air (v') = 340 ms

Q: When a tuning fork is held over the open end of a very thin tube, as in the figure, the smallest…

A: A tuning fork is held over the open end of a very thin tube .smallest value of L that produces…

Q: A flutist assembles her flute in a room where the speed of sound is 342 m/s. When she plays the note…

A: It is given that,

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: A friend of yours is loudly singing a single note at 400 Hz while driving toward you at 25.0 m/s on…

A: a.We know, for an observer standing still the frequency for a sound moving towards him at a velocity…

Q: An organ pipe (closed at one end) is 0.5 m long. (a) What is the fundamental frequency of the pipe…

A:

Q: Consider a diagnostic ultrasound of frequency 5.00 MHz that is used to examine an irregularity in…

A:

Q: A stereo speaker produces a pure tone with a frequency of 250 Hz. (a) What is the period of the…

A: given, frequency of speaker = 250 hz Vsound in air = 340 m/s Vsound in water = 1500 m/s

Q: The sound intensity from a jack hammer is 2.5W/m2 at a distance of 2.0m from the point of operation.…

A:

Q: a. What is the ratio of the diameter of the first student’s eardrum to that of the second student?…

A: Given data: The power from the sound wave is: P The sound intensity at the eardrums of the first…

Q: A 60 man choir sings with the sound intensity of 70 dB in a 12 m distance from the choir. a) What is…

A: Given information: Here, β is the sound level at r1 distance, r2 is the distance at which the…

Q: A 4.0-m-long pipe, open at one end and closed at one end, is in a room where the temperature is T =…

A: Given:-

Q: A train, standing at the outer signal of a railway station blows a whistle of frequency 800 Hz in…

A:

Q: The fundamental frequency of a pipe that is open at both endsis 444Hz. (Speed of sound = 344 m/s)…

A: A) solution- Given that, The fundamental frequency of a pipe is    (fo)= 444Hz Speed of sound (v)=…

Q: A crude approximation of voice production is to consider the breathing passages and mouth to be a…

A: Given:-

Q: Q4: What frequency is received by a person watching an oncoming ambulance moving at 110 km/h and…

A: speed of the source= vs= 110 km/h= 110×518…

Q: Diagnostic ultrasound of frequency 3.89 MHz is used to examine tumors in soft tissue. (a) What is…

A:

Q: The intensity

A:

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 bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: Given data:  Frequency (f) = 5.89×104 Hz Speed of sound (v) = 343 m/s

Q: An organ pipe has two successive harmonics with frequencies 1372 and 1764 Hz. (a) Is this an open or…

A: (a) Given data: The frequencies of two successive harmonics are 1372 Hz and 1764 Hz. (a) Let f0 be…

Q: Diagnostic ultrasound of frequency 4.64 MHz is used to examine tumors in soft tissue. (a) What is…

A: (a).Wavelength of sound wave in air is

Q: A guitar player tunes the fundamental frequency of a guitar string to 300 Hz.  (a) What will be the…

A:

Q: A wire is 5.00m long and is held in place at both ends. The wire is stretched to a tension of 200N .…

A:

Q: 9. A tuning fork makes a frequency of 440 Hz, if it is held in front of an open closed pipe. Assume…

A: Given data: frequency f = 440 Hz room temperature T = 20oC first position of standing waves l1 =…

Q: A sound wave traveling in 22 °C air has a sound intensity of 25 × 10-3 W/m2 Part (a) Assuming…

A:

Q: Parasaurolophus was a dinosaur whose distinguishing feature was a hollow crest on the head. The…

A: Frequency of standing wave modes of an open close tube of length L is, fm=mv4L       [m=1,3,5,7..]…

Q: A stationary listener hears frequency f1 from a source moving directly toward the listener with a…

A: The Doppler frequency can be written as follow fobs = f0vsound+vobservervsound+vsource

Q: A siren emitting a sound of frequency 1000 Hz movesaway from you toward the face of a cliff at a…

A:

Q: Energy Delivered to the Ear. Sound is detected when a sound wave causes the tympanic membrane (the…

A:

Q: S is a small loudspeaker driven by an audio oscillator with a frequency that is varied from 1000 Hz…

A: (a) Frequency is, f=nv2L=n344 m/s2×0.457 m=n376.4 Hz In the given range of frequency from 1000 Hz to…

Q: Suppose a low brass instrument, such as a tuba, has a fundamental frequency of 30.5 Hz. Such…

A: The resonant frequencies,

Q: a. What is the frequency of the sound? Assume vsound 340 m/s. b. What is the phase difference…

A: Given data: Xini = 0.50 m Xfin = 0.90m v = 340m/s

Q: A 0.717 gram guitar string is 0.629 m long. The string is under a tension of 73.9 N. (a) What are…

A: a)  The required fundamental frequency is, The required third harmonics is,

Q: Two students hear the same sound and their eardrums receive the same power from the sound wave. The…

A:

Q: The lowest frequency in the audible range is 20 Hz. What are the lengths of (a) the shortest…

A: Given:- The lowest frequency in the audible range is 20 Hz Find:-               (a)The lengths of…

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.