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This speed depends on the medium that is has to pass through, light travels at different speeds through different substances. For a perfect vacuum the speed is 3.00 x 108 m/s, around 186000 miles per second.
The amount by which light slows in a given material is described by the index of refraction, the factor by which it slows down. For a vacuum, this is 1, for air it is 1.0003, for water it is 1.33 for glass around 1.5 and for diamond it is 2.42.
So the speed of light in m/s through water is 3 x 108 / 1.33 = 2.24 x 108 m/sec.
The speed of light also depends on the wavelength, blue light is slower in a given medium than red light. This is what causes the colours from white light to separate out when passed through water, glass or diamond for example.
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What type of media can sound travel through?
Because waves, such as sound, need to travel through a medium, whether it be water, air, etc. Since in empty space, there is no air, therefore there is no medium to travel in, so sound cannot travel.Sound waves require a medium (solid, liquid or gas) to travel through. They do this by alternately compressing and rarifying the distanced between the atoms or molecules of the medium.
What is the refractive index?
refractive index is the measure of how how fast or slow light travel through a material reference to the speed of light in empty space.
How fast do all waves travel?
It depends on the wave. If it is electromagnetic wave it could travel at an incredible speed 300,000 km per second even through free space But mechnical waves which need badly material medium travel at different speed depending on the wave and then medium
How does light travel and how fast does it travel?
In a straight line and at 186,000 miles per second (in a vacuum).
How fast different colors of light travel through a vacuum?
They all travel through a vacuum at the same speed - The speed of light.
Does the color of a laser affect the velocity?
Light always travels at the same speed, the speed of light. At least in vacuum. In a medium light will travel at a slower pace, and the speed decrease is dependent on the color (wavelength) of the light. This is because the refractive index (which determines how fast light can travel through a medium) is color dependent.
How fast does light travel through copper?
Copper is opaque to light - light can not travel though it.
How fast does electricity travel in one second?
Depends on the medium through which it is traveling.
What is a medium breakfast?
medium breakfast
How fast does light travel through wind?
ans2. Light is an electromagnetic phenomena, and is unaffected by the motion of air.
How does light travel trough space?
Light goes incredibly fast through space, bouncing off objects.
Some fast do light rays travel?
Yes, they travel some fast!
What type of media can sound travel through?
Because waves, such as sound, need to travel through a medium, whether it be water, air, etc. Since in empty space, there is no air, therefore there is no medium to travel in, so sound cannot travel.Sound waves require a medium (solid, liquid or gas) to travel through. They do this by alternately compressing and rarifying the distanced between the atoms or molecules of the medium.
How fast does light travel through space in miles per hour?
670 616 629 mph
How fast does light travel than sound?
it is 3.5 billion times fast in a milli-second I don't know where this answer came from or what it means BUT - sound travels at roughly 700 mph in air at sea level; - light travels at 186,000 miles per second in a vacuum; - assuming we compare sound in air (as it can't travel in a vacuum) and light in a vacuum (as it can slow through a medium such as air or water), then light travels at 830,000 times the speed of sound.
What is the refractive index?
refractive index is the measure of how how fast or slow light travel through a material reference to the speed of light in empty space.
How fast do all waves travel?
It depends on the wave. If it is electromagnetic wave it could travel at an incredible speed 300,000 km per second even through free space But mechnical waves which need badly material medium travel at different speed depending on the wave and then medium
