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Acoustics
A musical tone sounded on a piano has a frequency of 261.6 Hz and a wavelength of 1.31 m. What is the speed of the sound wave?
Acoustics
a ray passes from air to medium it's incident ray is twice the refracted ray then what is the incident ray if refractive index is µ ?
Acoustics
The average sound intensity inside a busy restaurant is 4.9 x 10-5 W/m2. How much energy goes into each ear (area = 1.9 x 10-3 m2) during a one-hour meal?
Acoustics
What is the frequency of the note emitted by a disc siren with 30 holes, which is rotated at 500 revolutions per minute?!
Acoustics
q) In order to hear the echo of a sound, the minimum distance between the listener and the obstacle must be??( v of air is 332)
a.33m
b.17m
c.9.5m
d.8.5m
a.33m
b.17m
c.9.5m
d.8.5m
Acoustics
How are spoken and sung sounds achieved?
Acoustics
A friend claims that, "The sound level of a drill is 90 dB and it doesn't bother me. A rocket launch has a sound level of 180 dB and is considered very dangerous. How can this be, when it is only twice as loud?" Discuss the validity of your friend's statement.
Acoustics
What is a method to calculating the polar response of a microphone? What are the best methods to give consistent results?
Acoustics
What is the independent and dependent variable in a sonometer experiment?
Acoustics
Two sound waves are travelling through a room filled with Helium gas. Wave A has a wavelength of 1.2m. Wave B has a wavelength of 3.6m. Describe the velocity and frequency of wave A compared to wave B.
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