Sound velocity (m/sec) High 1,000 Sound bends 500 down -2,000 Path of waves 3,000 Min. Low 1,000 sound velocity SOFAR layer 4,000 1,500 - 5,000 Sound bends up High *= Sound source Increase This part of the waves moves more slowly... So the path of waves curves and the waves are refracted ... and this part moves faster. toward the lower velocity. The depth of minimum sound velocity (see again Figure 6.25). b The SOFAR layer, in which sound waves travel at minimum speed. Sound transmission is particularly efficient-that is, sounds can be heard for great distances-because refraction tends to keep sound waves within the layer. Depth (m) (4) yndea Increase 4 Increase → Relative velocity of sound GujuJee abebuago

Q: The resultant wave function of two waves traveling in the same direction on a string is given by…

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Q: 22.0 m

A: Given, Speed of sound in air, vair = 343 m/s the horn is 1.2 m above the water surfaceTemperature of…

Q: A siren mounted on a tower emits a sound whose (i) One way that the Doppler effect can arise is that…

A: (i) The frequency of the sound emitted by the siren (source frequency) (f,) is 2140 Hz. A person…

Q: When sound passes through a doorway, it spreads out much more on the other side than light would.…

A: We know that the more the wave deflects from objects in the room, the more it will spread in it. we…

Q: A loudspeaker is placed near the open end of a pipe length 87 cm closed at its other end. Calculate…

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Q: A concert is held inside a well-insulated hall. The concert hall is a half of a hemispherical shaped…

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Q: What is the shortest resonant length of the air column closed at one end if the wavelength of the…

A: The shortest resonant length of the air column closed at one end is when it's in the first harmonic.…

Q: In Quincke's experiment, the sound detected is changed from a maximum to a minimum when the sliding…

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Q: Intensity of two waves which produce interference are 100: 1. The ratio of maximum and minimum…

A: We need to compute here-Ratio of maximum intensity and minimum intensity ImaxImin=?Given…

Q: When a sound wave gets reflected from denser medium phase changes by (a) (b) т/2 (c) (d) no phase…

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Q: Find the ratio of the intensities of sound waves if one is 8 dB louder than the other.

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Q: You should hello into an echo chamber that is 250 m long. Assuming that the speed of sound is 340…

A: length of the echo chamber, d = 250 m speed of the sound , Vs = 340 m/s no damping of sound is there

Q: Q. 1: If the ratio of amplitude of two waves is 4:3. then the ratio of maximum and minimum…

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Q: (2) The pipes in organs are much bigger than our tube. What would be the fundamental frequency of an…

A: Approach to solving the question: Detailed explanation: Examples: Key references:

Q: (a) What is the speed of sound (in m/s) in a medium where a 152 kHz frequency produces a 0.635 cm…

A: Given, frequency f =152 kHz and wavelength is =0.635 cm

Q: If the wavelength of sound wave in a then the medium is reduced by 50%, percentage change in…

A: The percentage change in the frequency has to be found. Given: The wavelength of the sound wave in a…

Q: How much heat energy is required to hear a 50 grams of ice at -10.5 degrees Celsius to 374 degrees…

A: Amount of ice = 50 g= 50*10-3 kg Initial temperature of ice = -10.5 °C = 262.65 K Final temperature…

Q: A flat smooth surface will avoid the diffusion of sound energy in all directions. Select one: True O…

A: Step1 - Here we will understand the concept that will be used to solve the question. Reflection of…

Q: : What is phase difference between two Waves, if the resultant amplitude due to their superposition…

A: We need to compute-Phase difference ϕ=?The data given as-Superimposition of two waves on one…

Q: # 18. A police car sounding a siren with a frequency of 1.580 [kHz] is km] traveling at 120.0…

A: Frequency=1.580khz,,Speed=120.To find,a)In car approach:     Frequency observed=?  In car receded:…

Q: (d) Two people are speaking at the same time, with the voice of one of them slightly higher than the…

A: Pitch is that property of sound that makes it possible to judge higher or lower related to other.…

Q: The amplitude of an element on a standing wave of 2-m wavelength equals 1.5 times the amplitude of…

A: Given data: The wavelength of an element on a standing wave is, λ=2 m. The amplitude of an element…

Q: A sound wave that has a higher frequency has a wavelength that is O the same as any other wave O…

A: Option 3 is the right answer  Shorter

Q: A dB meter registered 125 dB when it was placed 3.90 m in front of a speaker. (i)  Calculate the…

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Q: The area were the molecules are least crowded in a sound wave is called the _

A: The area were the molecules are least crowded in a sound wave is called the _Rarefaction

Q: Two sound waves of the same frequency can interfere, but, in order to produce beats, the two sound…

A: Two sound waves of the same frequency can interfere, but, in order to produce beats, the two sound…

Q: Suppose the intensity over the surface of a hemisphere is (10 watt/ cm?). The area of the surface is…

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Q: Two waves, yı = 6 sin (533.8 t–942 x –11.38) and y2 = 8 sin (533.8t –942 x -20.8) interfere.…

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Q: 3)(A)One end of a 50-cm wire of 2.05 g is welded to a 40-cm wire of 5.03 g. (a) If a wave noves…

A: we know the formula for the velocity of a string in tension T, with linear mass density m is given…

Q: At what speed is an ambulance coming towards you if the actual and apparent frequencies are 10 and…

A: Actual Frequency, n= 10 HzApparent frequency , na= 12 HzSpeed of sound , v= 330 m/sobserver's speed,…

Q: What is the speed of the sound in a perfectly rigid rod?

A: Speed of the sound in a perfectly rigid rod would be infinite. For a perfectly rigid rod, the bulk…

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: The amplitude of two waves are in ratio 5: 2. If all other conditions for, the two waves are same,…

A: To find-Ratio of energy densities=?Given data-Ratio of amplitude A1A2=52All other quantity for two…

Q: Two waves, y1 = 8 sin (439.6 t –678 x –8.24) and y2 = 2 sin (533.8t –942 x –17.66) interfere.…

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Q: (c) Two identical speakers are placed at the positions X and Y, as shown in the following figure.…

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Q: The disc of a siren having a circle of 24 holes rotated uniformly 500 times in 1 min 24s. find the…

A: Given data: The number of holes is n=24. The number of rotation is N=500. The time is t=1 min 24 s.…

Q: The shape of pulse gets distorted during propogation in a dispersive medium, Why?

A: The shape of a pulse gets distorted during propagation in a dispersive medium, because a sound pulse…

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.