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Light travels 3/10 of a meter in 1ns or light travels 1 foot in 1ns. The answer above is clearly wrong, light travels so fast that you cannot time it with a stopwatch etc. Light travels at 300,000 kilometres a second. One millisecond is one thoudandth of a second. One metre is one thuosandthy of a kilometre. Thus in one thousandth of a second, light travels 300,000 metres. Please, somebody, check my logic! Your logic is right but your numbers are not. 1 ns means one nanosecond , a billionth of a second ,not a millisecond. I do wish people would write out words in full, and not rely on someone interpteting an abbreviation correctly. E.G. 'm' as a unit of length, which I have seen refering to 'miles' or 'metres'! It's so easy in a complex question, e.g. about the speed of light, to mistake one unit for another if just the initial is used. Thanks for the correction above.
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What is the scientific definition of the meter?
The meter is the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second.The distance light travels in a vacuum in 1/299,792,458 of a second is the offcial definition of a meter.
How is Energy transferred to a light meter?
Energy is transferred to a light meter through the incident light that falls on its sensor. The sensor then converts the light energy into an electrical signal that is proportional to the intensity of the light. This electrical signal is used to determine the light level and provide a reading on the light meter.
Who invented the light meter?
A light meter is used to measure the amount of ambient and reflected light in photography. This helps to determine the proper exposure for a photograph. A company called Weston marketed the first photographic light meter in 1932.
Is one meter the distance traveled by a ray of light in vacuum?
One meter is the distance travelled by light in vacuum in 1/299 792 458 second.
How does one measure light in a glow stick?
Light emitted from a glow stick can be measured using a light meter that quantifies the intensity of the emitted light. The unit of measurement for light intensity is typically in lux or lumens. By placing the light meter close to the glow stick, you can determine the brightness of the light it produces.
What is the modern definition of meter?
One meter is the distance that light travels in a vacuum in 1⁄299,792,458 of a second.
What is the meter definded by?
The current definition of the meter is in terms of the speed of light: "... the distance travelled by light in free space in 1⁄299,792,458 of a second".
How did they make a meter?
The meter was originally defined as one ten-millionth of the distance from the equator to the North Pole along a meridian passing through Paris. This definition was later updated using the speed of light. Today, the meter is defined as the distance that light travels in a vacuum in 1/299,792,458 of a second.
What is the scientific definition of the meter?
The meter is the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second.The distance light travels in a vacuum in 1/299,792,458 of a second is the offcial definition of a meter.
What element was used to redefine a meter?
The element used to redefine a meter was the speed of light. Specifically, the meter was redefined in 1983 as the distance light travels in a vacuum in 1/299,792,458 of a second.
What is the meter defined as?
A meter is the base unit of length in the International System of Units (SI), equivalent to the distance light travels in a vacuum in 1/299,792,458 seconds. It is commonly used to measure lengths and distances.
How is Energy transferred to a light meter?
Energy is transferred to a light meter through the incident light that falls on its sensor. The sensor then converts the light energy into an electrical signal that is proportional to the intensity of the light. This electrical signal is used to determine the light level and provide a reading on the light meter.
Who invented the light meter?
A light meter is used to measure the amount of ambient and reflected light in photography. This helps to determine the proper exposure for a photograph. A company called Weston marketed the first photographic light meter in 1932.
What is the definition of a meter?
The metre is defined as the distance travelled by light in a specific fraction (1/299,792,458) of a second.
What is the relation between light year and metre?
A meter is defined as the length light travels in 1/299,792,458th of a second. This is because light travels at 299,792.458 kilometers per second.
Is definition of speed of light can be said to be example of circular logic?
In Wikipedia speed of light is defined as 'in international distance of units (SI) the meter is defined as the distance of light traveled in vac-cum in 1/299,792,458 of the second. This definition fixes the speed of light at 'exactly' 299,792,456 meters/second. This definition is the 'classic' example of what is called as 'circular logic'. When it comes to shape of kidney, you say that it is bean shaped. When it comes to shape of bean, you say, it is kidney shaped. Here you take the help of meter to define the speed of light and when it comes to length of meter, you take the help of speed of light.
Is one meter the distance traveled by a ray of light in vacuum?
One meter is the distance travelled by light in vacuum in 1/299 792 458 second.
