34. Some sound from a loudspeaker at P travels directly to Q. Sound also reaches Q after being reflected from a wall at R. loudspeaker- 10m 8m 8m R wall The speed of sound is 330m/s. What is the difference in time for a sound to travel from P to Q by the two routes?

Q: A 33 kHz soundwave travels in air at v=355 m/s What is the temperature of the air through which it…

A: What is the velocity and wavelength?   Given data:Frequency of the soundwave, f  = 33 kHz = 33000…

Q: 2. What is the wavelength of the waves you create in the swimming pool if you splash your hand at a…

A: Given, frequency = 2 Hz            Wave speed = 0.8 m/s We know that speed = frequency× wavelength

Q: A researcher immerses a sound detector in water to record the sounds emitted by the animals. The…

A:

Q: 8.About Doppler effect, which statement of the following is NOT true? () A If the source and the…

A: Doppler effect takes place due to the relative motion between the source and the listener. Due to…

Q: 1- Is Intensity an acoustic variable? A. True B. False

A: 1. yes ,intensity is acoustic variable.   ANS:True

Q: Given that the threshold of hearing is 10-16 W/cm2, the intensity of a sound wave with a power of…

A: Intensity of sound wave (I) = 10-12 Wcm2Threshold of hearing (Io) = 10-16 Wcm2

Q: Q 15 A doctor using 3 MHz ultrasound measures a 6500 Hz frequency shift as the ultrasound reflects…

A: Considering the data, F = 3 MHz ΔF = 6500 Hz Velocity of sound in body = 1540 m/s Density, ρ = 1060…

Q: The frequency of ultrasonic waves is lower than that of normal sound waves. a. False O b. True

A: The frequency of normal waves is the frequency that human hear. The humans with normal hearing can…

Q: In a snowy day and a temperature of -27.30C, a train emitted a 531.85 Hz sound as it  recedes away…

A: Given T = -27.300C = (273.15 -27.30) K = 245.85 K Actual frequency (f) =531.85 Hz Apparent frequency…

Q: 1-What do you expect to be the speed of sound at 50 °C ?

A: The equation for the speed of sound is

Q: A teacher wants to demonstrate that the speed of sound is not a constant value. Considering her…

A: B.

Q: A set of waves has a speed of 4.2 m/s and a frequency of 2.0 Hz. The wavelength is 3.2 m. O 2.1 m.…

A:

Q: 3. A boat emits a sonar signal and it strikes an underwater object 4.67 seconds later. How far is…

A: Distance of object from the boat is 7159.11m Explanation:Step 1:Step 2:

Q: 6. What is the length of brass pipe if you measure a sound wave to take .5 s to travel the length of…

A: Time taken to travel through length ,"t"= 0.5s. now , speed of sound in brass is "v"= 4300m/s .…

Q: Can sound be propagated in a vacuum? Explain

A: Short answer : NO

Q: 2-What do you expect to be the wavelength of sound at 21.6 °C if the frequency is 800 Hz?

A:

Q: Which of the following is/are TRUE about the sound wave? A. Sound wave does not carry energy. B.…

A:

Q: In her physics lab Maria finds that she can take a long glass tube and fill it with water using the…

A: Waves behave like a wave inside a tube. They are known as standing waves. In case of a pipe closed…

Q: man is standing next to a speaker at a conference. What will happen to the intensity if he moves and…

A: Man moves and doubles his distance from the speaker

Q: Consider a sound wave traveling from left to right in a certain region in air. If, at a particular…

A:

Q: 1. A spectator at a parade receives an 890 Hz tone from an oncoming trumpeter who is playing an 881…

A: Doppler effect: When there is relative motion between the source of sound and the observer, then the…

Q: 98. Two sources A and B are sending notes of frequency 680 Hz. A listener moves from A to B with a…

A:

Q: A pulse is traveling towards the boundary from a more dense medium to a less dense medium. Medium 1…

A: when a wave passes from denser medium to rarer medium then it is partially reflected and partially…

Q: 6. The frequency of a tornado siren is 600 Hz. If a cyclist is moving toward the siren at 12 m/s in…

A: Ans:

Q: A person stands between two speakers driven by the same source. Each speaker produces a tone with a…

A: What is a Constructive Interference?A constructive interference is a situation where the resultant…

Q: 2. Light is a wave that travels at a speed of 3 x 108 m/s. The different colors that we see are…

A:

Q: What is the minimum speed (in m/s) at which a source must travel toward you för you to be able to…

A: Given v=335m/s Shift in frequency =0.290%

Q: Infrasonic wave is a sound wave with frequency

A:

Q: The frequency of an ambulance siren is 1000 Hz at rest. Ahmad, which is in his car, hears the…

A: frequency of ambulance siren at rest = 1000 Hz Frequency heard by Ahmad in his car = 1010 Hz

Q: B. A sound wave hits a reflective surface at an angle of 42°. At what angle will it be reflected?

A:

Q: Sound waves in air are: A. transverse B. longitudinal C. electromagnetic D. polarised

A: A wave in which the particles of the medium vibrate in the direction of the line of advance of the…

Q: Is it possible for sound waves to travel through a vacuum? Explain.

A:

Q: A sound wave with a wavelength of 1.163 m was traveling in the air with an ambient temperature of…

A: First sound of wavelength λ=1.163 m at temperature T=30oC and second sound has frequency f2=400 Hz.…

Q: In science-fiction movies, the movie makers provide exciting visual and sound effects, such as  the…

A: Sound:- A sort of energy created by vibrations is sound.  The vibration of an object causes the…

Q: A physics teacher is giving a demonstration with two tuning forks that have similar frequencies. The…

A: A. beats

Q: 2. As it approaches a boy standing on the road, an ambulance traveling at 100 km/hr blows its siren.…

A: Given velocity of the ambulance approaching the boy is vs = 100 km/hr = 27.78 m/s and the frequency…

Q: A firetruck which is moving with a velocity 100km/h is producing a siren of frequency 1000HZ. The…

A:

Q: It is the penetration of sound waves through materials A. Transmission B. Reflection D.…

A: given that,sound waves are penetrating through materials

Q: IV. It's not possible to use Through- Transmission Technique of ultrasonic inspection method to…

A: Option A

Q: 3. The frequency of a tornado siren is 1,000 Hz. If a cyclist is moving toward the siren at 10 m/s…

A: Part 2: ExplanationStep 1: Calculate the speed of the sound wave relative to the observer.\[…

Q: You stand at x = 0 m, listening to a sound that is emitted at frequency fs. as shown the frequency…

A: Given: x = 0 Frequency = fs

Q: The speed of sound in vacuum at 100-degree C is: O a. 1.17 m/s O b. 200.275 m/s O c. 386.87 m/s O d.…

A: The speed of sound in vacuum needs to be told.