Suppose you have a 8 MHz ( 8000000 Hz) sound wave moving at 344 m/s. If the frequency of the wave is reduced to 4 MHz, how will this affect the wavelength of the wave?

Q: A friend of yours is loudly singing a single note at 426 Hz while racing toward you at 13 m/s on a…

A: Given that A friend of yours is loudly singing a single note at 426 Hz while racing toward you at 13…

Q: Why does sound travel slower in cold air than in warm air?

A: velocity of air molecules depend on its temperature,  at higher temperature velocity of air…

Q: What is the​ loudness, in​ decibels, of a sound 10 billion times as loud as the softest audible​…

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Q: A human cannot hear sound at a frequency of 100 kHz or sound at 102 kHz. But if you walk into a room…

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Q: A trumpeter plays at a sound level of 75 dB. Six equally loud trumpet players join in. what is the…

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Q: 1 -1 -2 -3 -4 4 6. 8. 10 12 14 16 How is the intensity or frequency of the sound wave changing from…

A: From left to right it is clear that wavelength is decreasing.

Q: When listening to tuning forks of frequency 256 Hz and 260 Hz, one hears the following number of…

A: When two waves having slightly different frequencies travelling along same path superimpose then…

Q: How much louder is a 40 dB sound than a 10 dB sound? A 4 times B 30 times C 400 times D 1,000 times

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Q: If a 7.48 kHz sound source moves at a speed of 11.9 ms-1 toward a listener who moves at a speed of…

A: According to the Doppler's effect, the apparent frequency heard by the listener is, f'=v+v0v-vsf…

Q: What is the wavelength of the standing waves below? 0.5 m 6 m 0.25 m. 0.50 m. 1 m. 2 m. 4 m.

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Q: How many times greater is the intensity of sound from a concert speaker at a distance of 1 meter…

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Q: vacuum cleaner makes 60 decibel sound, whisper is 20 decibel, how much louder the vacuum cleaner is?…

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Q: What are the closest frequencies to 500 Hz that an average person can clearly distinguish as being…

A: Given:  Frequency, f = 500 Hz

Q: Why is the loudness of the sound heard by a plucked wire increased when it is mounted on a sound…

A: When the wire is mounted on a sound board, the surface area of vibration is increased.

Q: If the speed of a wave is 380 m/s and its frequency is 1900 Hz, then the wavelength of the wave will…

A: Given,              Speed of the wave(v)= 380 m/s            Frequency of the wave = 1900 Hz…

Q: Suppose that water waves have a wavelength of 4.1 m and a period of 2.3 s. What is the velocity of…

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Q: Suppose that water waves have a wavelength of 3.5 m and a period of 1.7 s. What is the velocity of…

A: Given: The wavelenght of the wave is 3.5 m. The period of the wave is 1.7 s.

Q: But what precisely is digital audio? the method used to transform analog sound waves into digital…

A: Digital Audio is a technology which is used to generate, reproduce, manipulate, record sound using…

Q: Suppose that a water wave coming into a dock has a speed of 1.5 m/s and a wavelength of 2 m. With…

A: Given,

Q: Why is there a Doppler effect when the source of sound is stationary and the listener is in motion?…

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Q: A person standing a certain distance from seventeen identical loudspeakers is hearing a sound level…

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Q: Why do sounds get fainter the farther you are from their sources?

A: Solution:- There are mainly two reasons.   1. When we are away or moving away from the sound source…

Q: A singer has an impressive 3 octave range. If the lowest frequency they can sing is 220 Hz, what is…

A: Given, A singer has an impressive 3 octave range. The lowest frequency they can sing is, f = 220 Hz

Q: Calculate the speed of sound on a day when a 2250 Hz frequency has a wavelength of 0.345 m.-

A: The frequency,   The wavelength,

Q: A clarinet player is sounding a sustained tone of 264 Hz. A second player sounds what he intends to…

A: Given:First frequency,f1=264 HzBeat frequency,fbeat=4 beat/secondFind second frequency,f2Now, Beat…

Q: A tuning fork with a frequency of 256 Hz is sounded together with a note played on a piano. Nine…

A: Nine beats are heard in 3 seconds, Therefore, three beats are heard every second  or, the beat…

Q: If you increase the frequency of a sound wave,

A: Given data: The velocity of a sound wave is: V The frequency of a sound wave is: f The wavelength of…

Q: Two speakers emit sound waves of different frequencies as shown in the figure: Speaker A has a power…

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Q: You scream at a wall located 100 m away from you. After 0.6 seconds, you hear your echo. If your…

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Q: What is the difference between sound and hearing?

A: Sound is derived due to vibrations caused in a medium when an object produces vibration pressure…

Q: The figures show standing waves of sound in six organ pipes of the same length. Each pipe has one…

A: Answer Frequency and wavelength are inversely proportional to each other which means that highest…

Q: Rank in order, from largest to smallest, the wavelengths λ1 to λ3 for sound waves having frequencies…

A: Relation for wavelength and frequency

Q: If a plane is heading towards you, the sound waves, emanating from the plane, that reach you will…

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Q: What sound levels must sounds of the following frequencies have in order to have the same loudness…

A: In this question we have to find the sound levels for the given frequencies. Please give positive…

Q: The highest musical note on the piano has a frequency of 4,186 Hz. Why would a tape of piano music…

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Q: How much more intense is sound at 40 dB than sound at 0 dB?

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Q: The siren on an ambulance is emitting a sound whose frequency is 2450 Hz. The speed of sound is 343…

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Q: A loud speaker has an input of 70 dB. If the volume of the sound is turned up so that the output…

A: The input intensity of the loudspeaker can be calculated as…

Q: How many times louder would a 68.0 dB sound be compared to a 48.0 dB sound?

A: here, L2=68.0 dBL1=48.0 dB

Q: A sound wave that is moving towards a stationary observer will have its wavelength compressed and…

A: Answer: The given statement is true. Explanation :- The apparent change of the frequency of the wave…

Q: The sound waves with a frequency below 20 Hz is called a. Infrasonic b. X ray c. Ultrasonic O d.…

A: Q14 Given thatFrequency of the Sound wave f < 20 Hz.

Q: What is the frequency of an instrument if it is played with a tuning fork having a frequency of 422…

A:

Q: What are the wavelengths of sound waves at the limits of human hearing and at the midrange frequency…

A: The velocity wavelength of sound waves are given by,  λ=vf Here, v is speed of sound and f is…