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Is speed of light in vacuum and medium same?
No, light in a medium will travel at a slower speed.
Why speed of light is greater than speed of sound?
The speed of light is the speed at which electromagnetic waves propagate through a medium. The speed of sound is the speed at which acoustic waves propagate through a medium. As the speed of sound relies on the medium moreso than the speed of light, sound propagates much slower than light.
Formula for refractive index in terms of speed of light in vacuum and speed of light in a medium?
Refractive Index= Speed of Light in Vaccum / Speed of Light in the material
What is the index of refraction?
The refractive index is the ratio of the speed of light in a vacuum to the speed of light in a medium.
What is the ratio of the speed of light in a vacuum to the speed of light in a different medium?
This is called the index of refraction. When light crosses the boundary between mediums (media) with different indices, it is bent (refracted).It's usually defined the other way around ... the ratio of the speed of light in vacuum to its speed in the medium. Since the speed of light is greater in vacuum than in any medium, the number is always greater than 1. It's referred to as the "refractive index" of the medium.
What is the effect on the speed of light when temperatures rise in the medium?
When temperature rises, the density of the medium changes. Speed of light through a medium is inversely proportional to the density of medium. So when the temperature increases, the density decreases and the speed of light in that medium increases. Note that this is the indirect effect of temperature. If light is travelling through vaccuum , then the temperature will have no effect on the speed of light.
A medium can effect speed of sound by changes in what?
When you change density and temperature you effect the way sound travels through a medium.
What is the effect of temperature on the speed of sound?
Speed of sound depends on the density of the medium. As temperature increases density decreases due to expansion in the volume. Hence speed of sound gets affected by the change in temperature. Speed of sound is directly proportional to the square root of the temperature of the medium.
What is the effect of the medium light travels through on its speed and energy level?
floating
Do speed of light depends on some factors as speed of sound depends on temperature?
The speed of light in a vacuum is constant and does not depend on external factors like temperature. However, when light passes through a medium other than a vacuum, such as air or water, its speed can be affected by factors like the refractive index of the medium.
What effect does a plane mirror have on the speed of light?
A mirror has no effect on the speed of light, but it has a radical effect on thevelocity of the wavefront, because it reverses the direction of the normalcomponent of the velocity.
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!
Why does speed of light change in different mediums?
Dependence of the speed of sound on the properties of the medium: The speed of sound is variable and depends mainly on the temperature and the properties of the substance through of which the wave is traveling. For example, in low molecular weight gases, such as helium, sound propagates faster compared to heavier gases, such as xenon. In a given ideal gas the sound speed depends only on its temperature. At a constant temperature, the ideal gas pressure has no effect on the speed of sound, because pressure and density (also proportional to pressure) have equal but opposite effects on the speed of sound, and the two contributions cancel out exactly. In non-ideal gases, such as a van der Waals gas, the proportionality is not exact, and there is a slight dependence on the gas pressure, even at a constant temperature. Humidity also has a small, but measurable effect on sound speed (increase of about 0.1% to 0.6%), because some oxygen and nitrogen molecules of the air are replaced by the lighter molecules of water. Cheers ebs
How can the speed of a wave of sound or light be changed?
The speed of a wave of sound or light can be changed by altering the medium through which it travels. For sound waves, the speed can be changed by changing the temperature, density, or composition of the medium. For light waves, the speed can be changed by changing the refractive index of the medium.
Is speed of light in vacuum and medium same?
No, light in a medium will travel at a slower speed.
Why does the speed of sound change if the temperature of the medium change?
The speed of sound is directly proportional to the temperature of the medium. This is because temperature affects the average speed of the molecules in the medium, which in turn affects how quickly sound waves can travel through it. As temperature increases, the speed of sound also increases due to the higher molecular activity.
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.
