If you quickly run away from the orchestra at a concert, the frequency of the sound you hear will be   Question  options:   increased.   decreased.   neither of these.

Q: Which has a more direct influence on the loudness of a sound wave: the displacement amplitude or the…

A: The relation between loudness and intensity is, Loudness=10logIIo where I is the intensity of the…

Q: A string on a guitar produces 431 Hz sound. How to increase the pitch of the sound produced

A: The speed of wave in a taut string is given by

Q: A reading of 94 dB is obtained on a sound meter placed near a drill. Calculate the intensity of the…

A: intensity in dB=20log10(I) where I is actual intensity for the given problem 94dB=20log10(I)…

Q: How does the frequency of sound shift when the source is moving away from us? It shifts a full…

A: When there is relative motion between the source and the observer then the frequency observed…

Q: When the sound intensity increases, its loudness does not change O increases O decreases cannot be…

A: Here, it is asked , whether the sound loudness increases on increasing its intensity or not. Let's…

Q: 12.Why the siren on an ambulance has a high pitch when it is approaching you and a low pitch when it…

A:

Q: A string clamped at two ends is vibrating at a frequency of 438.1 Hz such that the distance between…

A:

Q: Two waves destructively interfere. One has a displacement of 2.00 m and the other has a displacement…

A: Given : y1 = 2 m y2 = -3 m

Q: Any non-sinusoidal wave can be represented by a ........... of sine waves with harmonic frequencies.…

A: Required :   Any non-sinusoidal wave can be represented by a ........... of sine waves with…

Q: When you blow your horn while driving toward a stationary listener, the listener hears an increase…

A: According to Doppler’s effect: If the distance between the observer and source is decreasing, then…

Q: INCREASING the intensity of a sound by a factor of 10000 causes the sound level to increase by

A: Given, intensity increased by 10000 times We know,

Q: Two waves of the same frequency have amplitudes 0.901 and 1.55. They interfere at a point where…

A: Given:  A1 = 0.901m A2 = 1.55m Φ = 38°

Q: A plane flies at 1.25 times the speed of sound. Its sonic boom reaches a man on the ground 1.00 min…

A:

Q: An explosion occurs just below the surface of the water, will you hear it first if you are on the…

A: According to the problem, the explosion happens under the water; therefore, we consider two cases to…

Q: Superposition of two waves in the same phase to produce maximum intensity is known as Contractile…

A: Same phase,wave vector and frequency create coherent source. Superposition of two wave produce…

Q: What happens to the wavelength of the water waves as you decrease the frequency by putting your…

A: Frequency and wavelength is related as,

Q: When sound travels through air, the air particles Select one: O a. vibrate perpendicular to the…

A: There are two types of waves : 1. Longitudinal waves : They are the waves which vibrate in the same…

Q: The pressure wave, P = 0.01 sin [1000t – 3x] Nm2, corresponds to the sound produced by - a vibrating…

A: Approximate value of T is 4°c

Q: sound level measured in a room by a person watching a movie on a home theater system varies from…

A: Loudness of sound increase 10 times in increase of 10dB.

Q: A string that is 30.0 cm long and has a mass per unit length of 9.00 × 10-3 kg/m is stretched to a…

A:

Q: 55. What is the ratio of the intensity of a given sound to that of one that is 100 decibels higher?

A: Write the formula for the sound intensity level in dB.

Q: A person stands directly in front of two speakers that are emitting the same pure tone. The person…

A: The expression for the required frequency is

Q: Violins are short instruments, while cellos and basses are long. In terms of the frequency of the…

A: The frequency produced by an instrument is calculated by the mathematical formula, f=12LTμ Here, L…

Q: Suppose you are standing on the passenger-loading platform of the commuter railway line. As the…

A: According to Doppler Effect, when the train is approaching the station, the pitch will be more than…

Q: A piano tuner uses a tuning fork that emits sound with a frequency of 440 s-1 . Calculate the…

A: Given, Frequency of tuning fork f = 440 s-1  Velocity of sound v = 343 m/s Distance travel by sound…

Q: You are driving down the road at 15.13 m/s when an ambulance passes you with its siren blaring. The…

A: According to the doppler effect , the frequency will be greater or lower than the actual produced…

Q: 24.) If you pass by a building with a siren sounding, as you move away from the building, the sound…

A: due to Doppler effect of sound which depends upon the relative motion of sound and observer , the…

Q: As it approaches a hiker standing on the highway, a car traveling at 100 km/h blows its horn.…

A: speed of car (v) = 100 km/hr frequency of horn (f) = 440 Hz Temperature = 0oC

Q: A hollow tube of length (, open at both ends as shown above, is held in midair. A tuning fork with a…

A: Given Data: Tube length=l Frequency of vibration=fo Initial vibration is in fundamental mode; Pipe…

Q: 51.A 3 m string is driven by a 240 Hz vibrator at its end. Determine the speed of transverse waves…

A:

Q: The lowest note playable on a piccolo flute has a frequency of about 550 Hz. The portion of the…

A: speed of sound is v = 330m/s frequency is f = 550 Hz It is mentioned that, only half wavelength fits…

Q: A sound pulse emitted underwater reflects off a school of fish and is detected at the same place…

A: At 20 degree, the sound velocity in air is 1481m/s. The expression for the distance is,

Q: 2. In a medium where the speed is constant, wave A has twice the frequency than another wave B. The…

A:

Q: Three waves A, B and C propagate on strings with equal tensions and equal mass per length. Rank the…

A:

Q: 13.) When the crest of one wave passes through the trough of another wave, what takes place? a.…

A: When the crest of one wave passes through the trough of another wave , then it results in lower…

Q: A man standing between two Clift clap his hand and hear two echoes after 3.65 and 4.2 respectively.…

A: The man is in between the two cliffs as shown is figure here, The man listens two echoes after 3.65…

Q: When sound travels through air, the air particles Select one: a. do not vibrate b. vibrate along the…

A: Sound wave is a mechanical wave. A mechanical wave is that disturbance produced in a material medium…

Q: A rocket in a fireworks display explored high in the air. The sound spreads out uniformly in all…

A: Given : I = 2.0 × 10-6 W m-2 r = 120 m I' = 0.80 × 10-6 W m-2

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.