The table shows the speed of ultrasound waves in different tissues in the human body. Tissue Speed (m/s) Air 330 Fat 1,450 Water 1,480 Liver 1,550 Kidney 1,560 Blood 1,570 Muscle 1,580 Bone 4,080 What happens to an ultrasound wave that moves from muscle to bone? The frequency of the wave increases. The wavelength of the wave decreases. The frequency of the wave decreases. The wavelength of the wave increases.
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.
The table shows the speed of ultrasound waves in different tissues in the human body.
| Tissue |
Speed (m/s) |
|---|---|
| Air | 330 |
| Fat | 1,450 |
| Water | 1,480 |
| Liver | 1,550 |
| Kidney | 1,560 |
| Blood | 1,570 |
| Muscle | 1,580 |
| Bone | 4,080 |
What happens to an ultrasound wave that moves from muscle to bone?
-
The frequency of the wave increases.
-
The wavelength of the wave decreases.
-
The frequency of the wave decreases.
-
The wavelength of the wave increases.
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