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That is the approximate speed of electromagnetic radiation (usually referred to as light) in a vacuum.

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Q: What travels at 300000km per second?
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Radio waves travels at the speed of light 300000Km per second The wavelength of a radio wave received at 100 megahertz is?

3.0 M.


How fast can you radio message through space?

Radio waves travel at the speed of light in a vacuum, which is about 299,792 kilometers per second (186,282 miles per second). This means that radio messages travel through space at the same speed. It takes about 1.3 seconds for a radio message to travel from Earth to the Moon, and about 4.3 years to reach the closest star system to our solar system.


What travels faster?

Light travels faster than sound. Light travels at a speed of about 186,000 miles per second (300,000 kilometers per second) in a vacuum, while sound travels at a speed of about 1,125 feet per second (343 meters per second) in air.


What travels at a rate of 186000 mile per second?

Light travels at 186000 miles per second in vacuum.


What travels at 2398 feet per second?

Anything that travels 1,635 miles per hour.


How fast light travels in kilometers?

Light travels at a speed of approximately 299,792 kilometers per second in a vacuum.


Which travel faster light or sounds?

Light travels considerably faster.Sound travels at about 343 meters per second. Light travels at 299,792,458 meters per second.Light in vacuum travels about 876 thousand timesas fast as sound in air.If you meant to ask if light or sound travels faster then this is the answer:Light travels faster, with a speed of 300,000,000 m/s (which is equal to 300,000 km/s, or 186,282 miles per second). Sound, on the other hand, travels at a speed of 340 m/s (which is equal to 1126 ft/s).


What travels at 1088 feet per second?

Sound travels at 1,088 fps.


What is the speed in which light travels?

In vacuum it travels at 299,792,458 metres per second.


What travels at the speed of 186 000 ft per second?

Light travels at the speed of 186,000 ft per second in a vacuum.


Light travels fastest in what?

Light travels at 299792458 meters per second in a vacuum.


Is it true that light travels at about 10000 miles in one second?

No, that is not true. Light travels at 186,282.4 miles per second.