Physics
Speed of Light

# Do sound waves travel at the speed of light?

001 ###### 2009-07-25 08:19:51

No, sound waves travel much slower in the medium air.

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## Related Questions 'Radio' waves are physically and electrically identical to light waves except for their frequency (wavelength), and they travel at the same speed as light does. yes because light waves travel at the speed of 300,000 and sound waves travel 50,000 km per second Comparison:Both light waves and sound waves are a method of energy transfer.Both types of waves change their speed when traveling through various media.Contrast:Light waves are electromagnetic waves, and do not require a medium (matter) in order to travel. Sound waves MUST have a medium in order to travelThe speed of a light wave is faster than the speed of a sound wave.Light waves are transverse waves. Sound waves are longitudinal waves. The differences between light and sound are as follows:Light can be considered to be made of waves as well as particles. Sound is only a wave. It does not show particle nature.Light waves are electromagnetic waves while sound waves are mechanical waves.Light waves are transverse while sound waves are longitudinal.Light waves can travel in vacuum. Sound waves require a material medium to travel, and hence, cannot travel in vacuum.The speed of light in a medium is constant. The velocity of sound waves can change.In sound waves, the particles of the medium actually oscillate. In a light wave, the electric and magnetic vectors oscillate.Light waves can be polarized, but sound waves cannot.Light waves travel much faster than sound waves. The speed of light is a physical constant. Its value is exactly 299,792,458 meters per second in vacuum. The speed of sound is 343 meters per second in dry air at 20&Acirc;&deg;C.And finally, a simple one - you can see light while you can hear sound. Light waves travel faster than sound waves. No, sound waves (or the spped of sound) is slower than the speed of light. The speed of light is EXACTLY 299 792 458 m/s or meters per second. Light waves do not need a medium to propagate. Sound waves cannot travel without a medium. Light waves always travel at the speed of light that is 3*108m/s. The differences between light and sound are as follows:Light can be considered to be made of waves as well as particles. Sound is only a wave. It does not show particle nature.Light waves are electromagnetic waves while sound waves are mechanical waves.Light waves are transverse while sound waves are longitudinal.Light waves can travel in vacuum. Sound waves require a material medium to travel, and hence, cannot travel in vacuum.The speed of light in a medium is constant. The velocity of sound waves can change.In sound waves, the particles of the medium actually oscillate. In a light wave, the electric and magnetic vectors oscillate.Light waves can be polarized, but sound waves cannot.Light waves travel much faster than sound waves. The speed of light is a physical constant. Its value is exactly 299,792,458 metres per second in vacuuum. The speed of sound is 343 metres per second in dry air at 20&Acirc;&deg;C.And finally, a simple one - you can see light while you can hear sound. The differences between light and sound are as follows:Light can be considered to be made of waves as well as particles. Sound is only a wave. It does not show particle nature.Light waves are electromagnetic waves while sound waves are mechanical waves.Light waves are transverse while sound waves are longitudinal.Light waves can travel in vacuum. Sound waves require a material medium to travel, and hence, cannot travel in vacuum.The speed of light in a medium is constant. The velocity of sound waves can change.In sound waves, the particles of the medium actually oscillate. In a light wave, the electric and magnetic vectors oscillate.Light waves can be polarized, but sound waves cannot.Light waves travel much faster than sound waves. The speed of light is a physical constant. Its value is exactly 299,792,458 metres per second in vacuuum. The speed of sound is 343 metres per second in dry air at 20&deg;C.And finally, a simple one - you can see light while you can hear sound. Radio waves are sound. Therefore, yes, by definition, they travel at the speed of sound. The differences between light and sound are as follows:Light can be considered to be made of waves as well as particles. Sound is only a wave. It does not show particle nature.Light waves are electromagnetic waves while sound waves are mechanical waves.Light waves are transverse while sound waves are longitudinal.Light waves can travel in vacuum. Sound waves require a material medium to travel, and hence, cannot travel in vacuum.The speed of light in a medium is constant. The velocity of sound waves can change.In sound waves, the particles of the medium actually oscillate. In a light wave, the electric and magnetic vectors oscillate.Light waves can be polarized, but sound waves cannot.Light waves travel much faster than sound waves. The speed of light is a physical constant. Its value is exactly 299,792,458 metres per second in vacuuum. The speed of sound is 343 metres per second in dry air at 20&deg;C.And finally, a simple one - you can see light while you can hear sound. Light waves and radio waves travel faster then sound waves. It has been know for thousands of years that you can see something happen in the distance before you hear it happen. Radio waves and light waves are both electromagnetic waves and both travel at the speed of light. The speed of a Radio wave is same as of Light and it is 3X108 meter /sec while sound travels with speed of 300 m/sec. Radio waves are just low frequency light waves. They travel at the speed of light, much faster than sound waves which are just changes in pressure traveling in waves All electromagnetic waves travel at the speed of light. Which of them travel faster - light or sound waves? Light waves travel in vacuum with the speed of light c = 299792458 m/s or 983571056 ft/s. Sound waves travel at 20&deg;C (68&deg;F) with the speed of sound c = 343 m/s or 1125.33 ft/s. So light travels 874,030 times faster than sound. Don't forget that sound needs necessarily air as a medium. Light does not need a medium; vacuum is O Light waves are part of the electromagnetic (EM) spectrum Light waves and em waves are transverse, can travel in a vacuum and do so at the same speed (3.0 * 10^8) Sound wave are longitudinal and can not travel in a vacuum Light waves and radio waves travel faster then sound waves. It has been know for thousands of years that you can see something happen in the distance before you hear it happen. Radio waves and light waves are both electromagnetic waves and both travel at the speed of light. The speed of a Radio wave is same as of Light and it is 3X108 meter /sec while sound travels with speed of 300 m/sec. In both cases, if the wave travels through a medium, the speed of the wave is reduced by the index of refraction. There is no normal medium where the speed of light could be altered to make it a million times slower or sound sufficiently faster to allow any electromagnetic wave travel more slowly than sound. Light and sound are forms of radiation and travel in waves. In air, light waves travel about 871 thousand times faster than sound waves. Yes. Light waves are electromagnetic waves, which do not require a medium to travel through.Mechanical waves (such as sound) do require a medium to travel through, so sound waves cannot travel through a vacuum.Space is a vacuum. The light from the stars (including our own sun) travel across a great distance in a vacuum to get to us.The accepted speed of light is its speed in a vacuum, which is 299,792,458 m/s. Radio-waves, like light, are electromagnetic waves and hence travel at the speed of light. Sound Waves and Light Waves are different. The following are the differences I am aware of:Velocity: Light Waves travel through air and empty space at a speed of approximately 186,000 miles per second or 300,000 kilometers per second. Sound waves travel through air at the speed of approximately 1,100 feet per second or 330 meters per second.Wave Type: Sound Waves are longitudinal in nature whereas Light waves are transverse in nature.Light Waves can travel through vacuum whereas Sound cannot.Hope this helps.   Light waves travel at approx 300,000 kilometres per second, sound at approx 0.343 kilometres/second.Light waves can travel in vacuum or through some media (there is no such word as mediums!). Sound waves cannot travel through vacuum: they needs a physical medium.

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