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it should be 3x10^8 m s^(-1). here is the calculation:
we have known that the refractive index of vacuum is 1,
by n= v/c ( n stands for refractive index of medium, v stands for the speed of light in medium, c stands for speed of light constant)
1=v/3X10^8 m s^(-1)
v=
therefore, speed of light in vacuum is 3x10^8 m s^(-1)
actually, all light ray in electromagnetic spectrum have same speed in vacuum
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How does the speed of microwaves compare to the speed of visible light when measured in a vacuum?
They are equal.
How does the speed of visible light compare with the speed of gamma rays when both speeds are maeasured in a vacuum?
If both of them are in the same substance, then their speeds are equal.
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.
How does the average speed of light glass compare with its speed in a vacuum?
About 2/3 its speed in a vacuum.
What is the speed of light in miles per second in a vacuum?
The speed of light is 186,000 miles per second in a vacuum.
How does the speed of microwaves compare to the speed of visible light when measured in a vacuum?
They are equal.
What light travels the fastest in a vacuum ultraviolet or visible?
Light in a vacuum travels at the same speed regardless of its wavelength, known as the speed of light, which is approximately 299,792 kilometers per second. Both ultraviolet and visible light travel at this speed in a vacuum.
X-rays travel in vacuum at a higher speed than the visible light?
Yes, X-rays travel at the speed of light in a vacuum, which is higher than the speed of visible light. This is because the speed of light in a medium is inversely proportional to the refractive index of the medium, and X-rays have a shorter wavelength than visible light, allowing them to travel at a higher speed.
What is the speed of light in gold?
The speed of light in a material like gold is slower than in a vacuum, as light waves interact with the atoms of the material. In gold, the speed of light is approximately 0.63 times the speed of light in a vacuum.
Does one type of light travel faster then another in a vacuum?
In a vacuum, all types of light, such as visible light, radio waves, and X-rays, travel at the same speed, which is the speed of light, approximately 299,792 kilometers per second. This is a fundamental property of light in a vacuum known as the speed of light constant.
At what speed does visible light travel?
In vacuum it travels at approx 300,000,000 metres per second.
Why the velocity x rays is less than the speed of light?
It isn't - at least, not in a vacuum. All electromagnetic waves have the same speed in the vacuum. Both visible light and x-rays are electromagnetic waves.
How the speed of visible light compare with gamma rays when both speeds are measured in a vacuum?
Both visible light and gamma rays travel at the same speed in a vacuum, which is approximately 299,792 kilometers per second. This speed is often denoted by the letter 'c' in physics equations and is considered to be the speed of light in a vacuum, which is a universal constant.
Do radio waves travel through vacuum fasetr than visible light waves?
No, radio waves and visible light waves both travel at the speed of light in a vacuum, which is approximately 299,792 kilometers per second. The speed of light is constant, regardless of the wavelength of the electromagnetic radiation.
How does the speed of visible light compare with the speed of gamma rays when both speeds are measured in a vacuum?
The speed of both visible light and gamma rays in a vacuum is the same, which is approximately 299,792 kilometers per second. In a vacuum, all types of electromagnetic radiation travel at the speed of light, regardless of their wavelength or frequency.
Which light has the greatest speed?
In a vacuum, all types of light, including visible light and other types of electromagnetic radiation, travel at the speed of light, which is approximately 299,792 kilometers per second.
How does the speed of visible light compare with the speed of gamma rays when both speeds are maeasured in a vacuum?
If both of them are in the same substance, then their speeds are equal.
