Humans can roughly hear frequencies between 20 and 20,000 Hz, what is the range of wavelengths that are audible to humans in air (convert the frequency range to wavelength)? The visible range of light is considered light that ahs a wavelength between 400 and 700 nm, What is the visible frequency range of light (convert this wavelength range to frequency). Use speed of sound as 344 m/s in ai for the above calcualtions
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
1-) Humans can roughly hear frequencies between 20 and 20,000 Hz, what is the range of wavelengths that
are audible to humans in air (convert the frequency range to wavelength)? The visible range of light is
considered light that ahs a wavelength between 400 and 700 nm, What is the visible
light
calcualtions
2-) An interesting method to remove brain tumor involves using an ultrasonic surgical aspirator, which
produces sound waves with frequency 23k Hz. (a) What is the wavelength of this sound in air? When this
device is used on tissue the medium the sound travels in is no longer in air, but instead is bodily tissue and
fluids, where the speed of sound is roughly 1480 m/s, what is the wavelength of the sound in this medium
(frequency is unchanged).
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