# Quick Answer: What Is A Rarefaction In A Wave?

## What is the frequency of a wave with a period of 0.2 seconds?

All waves, including sound waves and electromagnetic waves , follow this equation.

For example, a wave with a time period of 2 seconds has a frequency of 1 ÷ 2 = 0.5 Hz..

## Do all waves transfer energy?

In transverse waves , the vibrations are at right angles to the direction of wave travel. Mechanical waves cause oscillations of particles in a solid, liquid or gas and must have a medium to travel through. … All waves transfer energy but they do not transfer matter .

## Can a sound wave travel in a vacuum?

Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stands to reason that they cannot travel through empty space, where there are no atoms or molecules to vibrate.

## What is Rarefraction in a wave?

Rarefaction is the reduction of an item’s density, the opposite of compression. Like compression, which can travel in waves (sound waves, for instance), rarefaction waves also exist in nature. A common rarefaction wave is the area of low relative pressure following a shock wave (see picture).

## What is the definition of rarefaction?

Rarefaction, in the physics of sound, segment of one cycle of a longitudinal wave during its travel or motion, the other segment being compression. … This is rarefaction. A succession of rarefactions and compressions makes up the longitudinal wave motion that emanates from an acoustic source.

## What is the compression of a wave?

A compression is a region in a longitudinal wave where the particles are closest together. … The region where the medium is compressed is known as a compression and the region where the medium is spread out is known as a rarefaction.

## Is sound a wave or a particle?

Although sound travels as a wave, the individual particles of the medium do not travel with the wave, but only vibrate back and forth centered on a spot called its equilibrium position, as shown below. Sound is a longitudinal wave. Red dots and arrows illustrate individual particle motion.

## What types of waves travel only through matter?

The energy of a mechanical wave can travel only through matter. The matter through which the wave travels is called the medium (plural, media). The medium in the water wave pictured above is water, a liquid. But the medium of a mechanical wave can be any state of matter, even a solid.

## What is rarefaction and compression?

Compression and Rarefaction. • Compression- a region in a longitudinal (sound) wave where the particles are closest together. • Rarefaction- a region in a longitudinal (sound) wave where the particles are furthest apart.

## What type of wave has Rarefactions?

longitudinal wavesSound waves traveling through air are indeed longitudinal waves with compressions and rarefactions. As sound passes through air (or any fluid medium), the particles of air do not vibrate in a transverse manner. Do not be misled – sound waves traveling through air are longitudinal waves.

## What causes rarefaction?

For example, (1) in an explosive detonation, immediately following a shock wave, a rarefaction wave is usually formed since the shocked material is to release; (2) when a shock wave travels from a high shock impedance material to a low impedance one, a rarefaction wave occurs since the pressure in the high impedance …

## What does a wave transfer?

‘Wave’ is a common term for a number of different ways in which energy is transferred: In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.