Sound
Q: If the intensity of a sound wave increases by 2%, what is the change in the sound level of the wave?…
A: let initial intensity = 100 W/m2 β = 10 log (I/Io)β = 10 log ( 100 / 10-12)β = 140 dB New intensity…
Q: 1. The speed of sound wave depends on ______________. A. pitch B. loudness. C. temperature D.…
A: "As per the guidelines i solved the first question alone". 1. The expression for velocity of the…
Q: both the source of sound and observer are moving, the apparent frequency will be different from the…
A: Introduction: Due to the relative motion of the source and observer, the observer observed apparent…
Q: 3) A herd of 7 screeching elephants makes a sound of 117 dB. a) What is the intensity produced by…
A: Number of elephants screeching, The intensity of sound in decibels,
Q: An ambulance with a siren emitting a whine at 1470 Hz overtakes and passes a cyclist pedaling a bike…
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Q: Sound has only one speed, regardless of medium. True False
A: Sound is the longitudinal wave which needs a material medium to travel. For the different medium,…
Q: You want a pan pipe with a frequency of 261 Hz. 1) If the speed of sound is 343 m/s, what would be…
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Q: A pulse moves along a 2.2 m long taught string at 21 m/s. If the tension of the string is 4.3 N,…
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Q: Q17- Infrasound ,the sound frequency between -- O 0-20KHZ 2011-
A: The frequency of audible sound is 20 Hz to 20 KHz. The sound below the threshold frequency is termed…
Q: The sound of a bomb explosion travels faster than the sound produced by a humming bee. a) True b)…
A: The sound of a bomb explosion and sound produces by a humming bee having different…
Q: QUESTION 23 A string with two fixed ends has a mass of 2.0 g and a length of 40 cm. If the string is…
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Q: The characteristic sound waves used by the bats are ____________: a. none of these b. ultrasound c.…
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Q: 11. If 1 bug makes a sound of 8 dB then what will 25 bugs sound like?
A: 11) Given, Sound intensity level of 1 bug is 8dB.
Q: A sound has an intensity of 5 x 10^(-7) watt per sq. m. What is its intensity level? *
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Q: . What is the frequency of the first harmonic in a closed end air column with a length of .172…
A: given that length of closed organ pipe L = 0.172 m velocity of sound = 340 m/s first harmonic L =λ…
Q: 10 A. How does the speed of sound in air compare with its speed in water and in steel? Reference…
A: The speed of sound varies significantly depending on the medium it travels through. In general, it…
Q: 3. The speed of sound in salt water is approximately 1500 m/s. Humpback whales can vocalize sounds…
A: Given Speed of sound in salt water , v = 1500 m/s Ferquency range is varying from 30 Hz to 8000…
Q: Please give me an explanation on how to compute for the velocity of sound in air. You can give…
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Q: When a sound wave creates a standing wave in a pipe that is closed at one end, the closed end of the…
A: The closed end of pipe is usually considered as pressure node when a sound wave creates a standing…
Q: On increasing the temperature, the speed of sound in air: a. first increases then become constant b.…
A: Speed of sound in air with temperature is given by v=331+0.61T where v is speed and T is…
Q: Would you expect the pitch produced by tapping a glass of water to increase or decrease as the water…
A: sound travel through the vibration of particles of the medium of the sound wave. the greater the…
Q: The frequency of a sinusoidal wave on a string-- a none b. Remains constant c. Decreases when…
A: We know that, frequency, f=cλ where; f - frequency c - speed of light λ- wavelength we can say that…
Q: QUESTION 20 The human ear can detect sounds in which of the following range of frequencies O 20 Hz…
A: The human ear can easily detect frequencies between 20 Hz and 20 kHz. Hence, sound waves with…
Q: 178. The fundamental frequency in an open organ pipe is equal to the third harmonic of a closed…
A: To determine: The length of the open organ pipe Given: Length of the closed organ pipe, l2=20 cm
Q: 014) a) In the fixed wave system of 60 cm length, fixed at both ends, the steady wave is first…
A: Given, Length, L= 60 cm Frequency = 1/4 Hz
Q: The noise a lawn mower produces is 80 dB. How much noise is from 8 identical lawn mowers?
A: Given that-The noise of a single lawn mower produces is 80 dB.Let 'I' is the intensity of one lawn…
Q: In a transverse wave, crest is a point on the wave where the ______________________. a. displacement…
A: In a transverse wave, crest is a point on the wave where the ______________________. a.…
Q: 14. A fire engine is driving EAST at a speed of 29.4 m/s while its siren is blaring a 448 Hz tone.…
A: Velocities of observervelocities of the sourcespeed of sound in airfrequency of blarring siren
Q: A loud classroom is rated as 80 dB and a noisy siren 100 db. How much louder is the noisy siren…
A: The loudness in the classroom is rated as L1=80 dB The loudness of the noisy siren is rated as…
Q: What factors does the speed of sound depend upon? What are some factors that it does not depend…
A: Speed of sound depends upon temperature , density , viscosity , pressure, elasticity , density.
Q: When two waves with equal intensities are in phase, the wave disturbance is doubled. O a. False O b.…
A: Option b. True is correct
Q: What is the sound intensity level of a sound with an W/m?? intensity of 1.7 x 10-4 dB
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Q: such as a wall or a cliff. Explain how you can determine how far away the object is by timing the…
A: To Find: How you can determine how far away the object is by timing the echo. Let d be the distance…
Q: A mechanical wave propagates through a medium, a reference system is established and in this system…
A: Mechanical waves are two types (1) longitudinal (2) transverse
Q: One day when the speed of sound in air is 343 m/s, a fire truck traveling at vs = 33 m/s has a siren…
A: Given:- The speed of the sound is v = 343 m/s The fire truck traveling with the velocity of vs= 33…
Q: If the intensity of the sound is doubled, what will the sound level be in decibels* O 3dB O-3dB O2dB…
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Q: The speed sound in air depends on the of the air. wavelength temperature frequency amplitude
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Q: 2. It was tradition in some army troops in the past to cease stepping in perfect formation whenever…
A: Resonance: This is a phenomena that occurs when frequency of a periodic force is equal to the medium…
Q: Two cars from different lanes approach each other. Car A moves at 80.0 km/h and car B moves at 76.0…
A: Two cars are from different lanes means they are traveling opposite to each other. The relation of…
Q: A sound wave of frequency 880 Hz and power 50.0 W creates loudness at a sound meter of 40.0…
A: In this question we have to find the increase in sound level. Please give positive feedback if the…
Q: 8) Consider a 0.676-m long tube, open at both ends. a) What is the fundamental resonance frequency,…
A: The fundamental frequency is calculated using the formula f1 = v/(2L). where v is the speed of the…
Q: What is the speed of a transverse wave in a rope of length 2m and mass 60g undera tension of 50ON?
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Q: 3.) A gas-filled 40.0 cm long pipe closed at one end produces a 624 Hz fundamental frequency.…
A: Wave.
Q: If the sound volume increases from 30 dB to 80 dB, then the intensity of the sound increases by a…
A: Given data The initial sound volume is given as β1=30 db The final sound volume is given as β2=80…
Sound of mosquito produces high pitch than the sound of a lion.
a) True
b) False
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