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It travels at the speed of light! Which computes to 1 second to travel approximately 300,000,000 metres (186,282 miles) when travelling through space. It takes about 8.32 minutes for the Sun's light to reach the earth.
In space (a total vacuum) it actually travels at precisely 299,792,458 metres (about 186,282.397 miles) per second. Air slows it down a bit, water slows it down a bit more, and when light passes through a diamond it goes at about 41% of that speed, i.e. a measly 76,375.8 miles per second. For more details about the speed of light in different materials, See Related links below this box.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoIt takes 1 second for each 186,000 miles it has to cover.
Longer distances take more time.
Normally I would not feel it necessary to add anything further to this but as the above poster values absolute accuracy so highly...
The speed of light varies depending upon what medium it is travelling through (e.g. air, water etc..) In 1972 the speed of light in a vacuum was calculated to be 186,282.3959 miles per second. This of course is still an approximation, but is more precise than 186,000.
Wiki User
∙ 10y agoVisible light has wavelength ranging from 3.9 x 10-7 m to 7.3 x 10-7 m
Lowest is for violet and the longest is for red
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What are wave lengths in your eye?
wave lengths in your eye grab light and make it the colour you see
How long are X ray wave lengths compared with ultraviolet wave lengths?
X-rays are shorter waves than ultraviolet ones.
What kind of electromagnetic radiation do pulsars emit?
All electromagnetic wave lengths (light)
Why do you not see constructive and destructive interference of white light?
Because there are too many wave lengths to overlap.
What is a relationship between frequency and wavelength?
The issue is not frequency and wavelength, a relationship is the problem AM Wave length is longer, than FM Wave length. Shorter wave lengths have a tendency to be shorter in the pm. AM Wave lengths were used before FM wave lengths.
What are wave lengths in your eye?
wave lengths in your eye grab light and make it the colour you see
Do light waves or gamma rays have shorter wave lengths?
I assume by light rays, you mean visible light rays. In this case, gamma rays have shorter wave lengths.
What has wave lengths longer than the wave lengths of visible light?
Radio waves, microwaves and infrared light have a longer wavelength and lower frequency than visible light.
Is speed of light is the same for all the wave lengths?
yes
What do you call light divided into wave lengths?
You probably mean "Spectrum".
What is the purpose of a spectroscope?
The spectorscope is used to mark wave lengths of light. :)
What light wave lengths are reflected in chlorophyll?
Green light is reflected. Red and blue light are absorbed.
How long are X ray wave lengths compared with ultraviolet wave lengths?
X-rays are shorter waves than ultraviolet ones.
Different wave lengths of visible light result in different?
...colors when the light enters your eyes.
What is the form of energy with wave lengths that are shorter than violet light?
Ultraviolet.
What kind of electromagnetic radiation do pulsars emit?
All electromagnetic wave lengths (light)
Do all colors have the same wave lengths?
The visible light part of the electromagnetic spectrum is below the ultraviolet but above infrared. Purple light has the highest wave length and red has the lowest.
