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Speed of light is dependent on density of medium and is inversely proportional to density of medium. Density of air is greater than vaccum. Therefore light moves slower in air than vaccum.
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∙ 11y ago
Light moves slower in air than in a vacuum because air molecules and atoms can interact with the electromagnetic waves of light, causing them to scatter and slow down. In a vacuum, there are no particles to interact with, so light can move through it at its maximum speed of approximately 299,792,458 meters per second.
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Can electrons move slower than the speed of light?
They can ONLY move slower than the speed of light.
What happens to frequency does the speed of light ever change?
The speed of light IN A VACUUM is always the same. In substances other than the vacuum, the speed of light is usually slower than in a vacuum.
How does a medium (matter)affect the speed of light?
When light goes through any medium other than a vacuum, its speed is normally slower than in a vacuum.
Does light travel faster in glass than in a vacuum?
No, slower. Light travels fastest in a vacuum. Anything transparent that light can pass through slows it down somewhat. Diamond crystal slows it down notably, which is part of what causes the "fire" in a diamond.
What of the following statements about the speed of light is true?
nothing can move faster than the speed of light in a vacuum APEXXX
Can electrons move slower than the speed of light?
They can ONLY move slower than the speed of light.
How does light change speed from glass to air?
In glass, light will go somewhat slower than in a vacuum. Air is almost like a vacuum, with respect to the speed of light - some difference still exists, though.In glass, light will go somewhat slower than in a vacuum. Air is almost like a vacuum, with respect to the speed of light - some difference still exists, though.In glass, light will go somewhat slower than in a vacuum. Air is almost like a vacuum, with respect to the speed of light - some difference still exists, though.In glass, light will go somewhat slower than in a vacuum. Air is almost like a vacuum, with respect to the speed of light - some difference still exists, though.
Why you cannot accelerate electrons greater than the velocity of light in free space?
Nothing can be made to move faster than the speed of light in a vacuum; for objects that move slower than light, even reaching the speed of light would require an infinite energy.
What happens to frequency does the speed of light ever change?
The speed of light IN A VACUUM is always the same. In substances other than the vacuum, the speed of light is usually slower than in a vacuum.
Does light travel faster underwater than in air?
As compared to what? Compared to air, or to a vacuum, light travels quite a bit slower in water.As compared to what? Compared to air, or to a vacuum, light travels quite a bit slower in water.As compared to what? Compared to air, or to a vacuum, light travels quite a bit slower in water.As compared to what? Compared to air, or to a vacuum, light travels quite a bit slower in water.
How does a medium (matter)affect the speed of light?
When light goes through any medium other than a vacuum, its speed is normally slower than in a vacuum.
Does light travel faster in glass than in a vacuum?
No, slower. Light travels fastest in a vacuum. Anything transparent that light can pass through slows it down somewhat. Diamond crystal slows it down notably, which is part of what causes the "fire" in a diamond.
Do the electrons move the speed of the light?
No, because the orbital is really just an abraction - the electron isn't racing around the orbital like a racecar, so there isn't a speed. The orbital is a better measure of the electrons potential energy.
Can light travel with lower speed than light speed?
Light can certainly travel slower than its speed in vacuum ... 299,792,458 meters per second.It travels slower than that whenever it's traveling through anything other than vacuum, such as air, water, glass, jello, etc.Light slows when it travels through any material medium. In fact, the speed of light in a medium is equal to the speed of light in a vacuum divided by the index of refraction of the medium.
Do electrons move faster than the speed of light?
No. Because of their mass, they travel slower than c.
Why is the speed of light limited in a vacuum?
The speed of light is not limited in a vacuum - the speed of light is fastest in a vacuum. But that is what Einstein called the "Cosmic Speed Limit" - nothing can move faster than the speed of light in a vacuum, or even quite asfast.
Is the speed of sound equal to an electromagnetic wave?
No, speed of sound in air is much slower than the speed of light in vacuum.
