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What is the speed of light in vacuum divided by the speed of light in medium?
Wiki User
∙ 7y ago
The speed of light in a vacuum is 186,000 miles per second and the speed of sound at 70 degrees F at sea level is approx. 1100 feet per second. Do the math.
You should come up with something around 879 thousand. (a ratio, with no units)
Wiki User
∙ 12y ago
Wiki User
∙ 8y agoThe speed is the reciprocal of the dielectric constant. The dielectric constant is a property of the material and is the square root of the relative permittivity. That is around 2¼ for many common dielectrics like polythene.
Wiki User
∙ 10y agoFrequency of any electromagnetic wave = (speed of light)/(wavelength) .
Wiki User
∙ 14y agoThe speed of light is different for different medium.That is , the more dense the medium ,then the more light will be slowed down and vice-versa.
Wiki User
∙ 8y ago
The speed of light in vacuum is greater than its speed in any substance.
Wiki User
∙ 7y agoThe result of this division is equal to the so-called "index of refraction" of the corresponding medium.
Wiki User
∙ 10y agoIt's wavelength.
Wiki User
∙ 9y agoIn vacuum, it's 2,997,924.58 per second.
Wiki User
∙ 7y agoIt is the refractive index of the medium.
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What causes light rays to bend when they enter a new medium at an angle?
Light rays bend when they enter a new medium at an angle because they either slow down or speed up. They speed up the most if they are in a vacuum.
The speed of light indicates how fast light can travel in a vacuum?
Yes ... in a vacuum.
Why the speed of light has been quoted as being 'in a vacuum' yet the speed of sound is at a specific temperature?
Light will be transported without a medium. The speed of light is = 299 792 458 m/s. Sound need a medium to be transported. It's mostly air, where the temperature is important. The speed of air is 343 m/s at 20 degrees Celsius and 331.3 m/s at 0 degrees Celsius.
What is constant and never changes?
The speed of light in a vacuum never changes.
How does water affect light?
The speed of light depends on the electrical properties of the medium (stuff) it's travelingthrough. Its speed is maximum in vacuum ... 299,792,458 meters per second ... and it hasdifferent speeds in any material ... e.g., air, water, glass, jello, etc. As long as the light staysin the same material, its speed doesn't change.In water, the speed of light depends slightly on the wavelength of the light. For thewavelength of 400 nm (reddish light), the refractive index of water is about 1.34 ,so the speed of that light is about 223,700,000 meters per second ... 25.4% lessthan it is in vacuum.
What the value of the index of refraction of a medium?
It's the speed of light in vacuum divided by the speed of light in that medium.
How is the index of refraction of s medium related to the speed of light inThe medium?
The index of refraction of a substance is(The speed of light in vacuum) divided by (the speed of light in the substance) .
Why is the speed of light medium?
The speed of light is not medium: in vacuum, it is the highest speed that there can be. Hardly a definition of medium!
Is speed of light in vacuum and medium same?
No, light in a medium will travel at a slower speed.
How is the index of refraction of a substance related to the speed of light in the substance?
The substance's index of refraction isSpeed of light in vacuum / Speed of light in the substance
What is the refractive index of a medium?
The relationship is the following: the speed of light in an object is equal to the speed of light in a vacuum, divided by the material's index of refraction. Example: A certain glass has an index of refraction of about 1.5 (it depends a bit on the type of glass!). Since the speed of light in a vacuum is 300,000 km/sec., the speed of light in such glass is (300,000 km/sec) / 1.5 = 200,000 km/sec.
What is the speed of light in vacuum to the speed of light in medium yield?
That quotient is the refractive index of that medium.
The ratio of the speed of light in a medium to the speed of light in a vacuum is called its?
It is usually expressed the other way: the ratio of the speed of light in a vacuum to the speed of light in a medium. In that case, it is called the "index of refraction".
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.
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.
How is the index of refraction of a medium related to the speed light of in the medium?
c divided by the index of refraction of the medium = the speed of light in the medium.
In which medium is the speed of light a maximum?
Light travels fastest in a vacuum.
