(a) What is the speed of sound in a medium where 100kHz frequency produces a 5.96 cm wavelength? (b) Which substance is the medium is likely to be? Please refer to the table on speed of sound of various substances.
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. (a) What is the speed of sound in a medium where 100kHz frequency produces a 5.96 cm wavelength?
(b) Which substance is the medium is likely to be? Please refer to the table on speed of sound of various substances.
![Below is the table for the speed of sound in various substances.
Gases 0°C
Liquids at 20°C
Solid (longitudinal or bulk)
Vw (m/s) Medium
Vw (m/s) Medium
V. (m/s)
Medium
Air
331
Ethanol
1160
Vulcanized rubber 54
Carbon Dioxide 259
Mercury
1450
Polyethylene
920
Helium
316
Water, fresh 1480
Marble
3810
Hydrgen
965
Sea water
1540
Glass, pyrex
5640
1290
Human
1540
Lead
1960
Tissue
Aluminum
5120
Steel
5960](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fddf9dd1f-4caf-4ad1-9c46-43d8c7c9023d%2F3cdc15cd-ef86-4aa1-9cb1-77a69c861d32%2Fmssm8u_processed.jpeg&w=3840&q=75)
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