One What is the shortest wavelength you can hear?

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SUMMARY

The shortest wavelength audible to humans ranges from approximately 20 Hz to 40 Hz. A specialized device can transmit out-of-phase sound from a noisy environment, such as a jackhammer, allowing the operator to hear voices clearly while others cannot. This device likely utilizes resonant sensors that specifically respond to the frequency of human speech, effectively isolating it from lower frequency noises. The discussion emphasizes the relationship between frequency and wavelength in sound perception.

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One What is the shortest wavelength you can hear?
TwoA special device can transmit out-of-phase sound from a noisy jackhammer to earphones worn by its operator. Over the noise of the jackhammer, the operator can easily hear your voice while you are unable to hear his, Explain.
 
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The shortest wavelenghth you can hear is about 20-40Hz.

Probably the device has some resonant sensors, that only respond to the wavelength of human voice (the jackhammer's sounds should have lower wavelengths). The device also isolates the all the sound around and only the signals received by the sensors are amplified and led to his ears
 
No. That's the longest wavelength.

EDIT: I took out the rest of the answer because this is obviously homework. What realtion do you know between frequency and wavelength?
 
Last edited:
Sorry guys for wasting your time I solved it
 

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