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The speed of light in a vacuum is 186,282.397 miles per second or 670,616,629.2 miles per hour.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoExactly 299,792,458 meters per second - enough to go around the Earth 7 1/2 times in one second.
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What is the difference between light year and light min?
A light year is how far light travels in a year. A light min is how far light travels in a minute. light speed is 186000 mile/sec, at this speed you have to calculate how far it would travel in one year or one minute
What is the speed of a satellite signal?
A satellite signal will be a radio signal. And a radio signal in space travels at the speed of light.
How does a window reflect light?
A window reflects light because light, which is a wave, travels slower in glass than in air. It travels at about 2/3 the speed in glass as it does in air. Also light travels at about 3/4 the speed in water as it does in air and so that is the reason light reflects off the surface of water. The greater the difference in speed between the two mediums, the more light is reflected at the surface boundary. An amazing experiment is to submerge glass in a transparent liquid that has the same "index of refraction". The 'index of refraction" of a substance is simply the measure of the speed with which light travels in the substance. If you submerge the glass, and the speed of light is the same in the liquid as in the glass, the glass seems to disappear. The reason is seems to disappear is because light is no longer reflected off the surface of the glass, and if you think about it, that is the only reason that you can see a glass in the first place.
How long does it take to travel from England to America at the speed of light?
Washington DC and London England are 5,882 km apart light travels at 299,793 km/s A the speed of light it would take less than 20 nanoseconds.
Why is light measured in distance and not in time?
-- The distance that light travels in some amount of time is expressed in units of distance. -- The time that it takes light to cover some amount of distance is expressed in units of time. -- The speed of light is expressed in units of speed . . . distance/time
Why is it important to explain the speed of light together with the medium in which the light travels?
The speed of light is dependent on the medium it travels through. Light travels fastest in a vacuum than in water or air.
When is the only time that light travels at the speed of light?
Light always travels at the speed of light, although that's a different number in different substances.
How do you use light speed in a sentence?
A asteroid travels at the speed of light.
What is the mass of the body which travels in the speed of light?
The only thing that travels at the speed of light, is light. Light is also said to have no mass, therefore the only way for something to travel at the speed of light is for it to have no mass.
What broadband internet connection travels at the speed of light?
Fiber Optic Broadband is the type of internet connection that travels at the speed of light.
The sound travels at the speed of light to your ear?
No, not quite. The sound travels at the speed of sound to your ear.
What color travels the slowest?
The entire electromagnetic spectrum travels at the same speed. The speed of light.
What makes light travel?
It only travels in the speed of light
How light travels from a flashlight?
In a straight line. At the speed of light.
What causes light rays to refract?
light travels in straight path and when speed of medium in which light travels change then it refract due to change in speed light rays bend and refract
How does light travel witch is faster light or sound?
Light is much faster then the speed of sound. Sound travels at a speed of about 768 Miles per hour, when light travels at a speed of 186,282 miles per SECOND.
What travels at more then speed of light?
A tachyon
