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Until recently, the meter was defined as 1,650,763.73 wavelengths of orange-red light emitted from a krypton-86 lamp. However, in October 1983, the meter was redefined as follows: One meter --> The distance traveled by light in a vacuum during a time of 1/299,792,458 of a second.
Wierd, huh?
http://demo1.physics.wisc.edu/MDemos/Writeups/M1StMeter.htm
What else can I help you with?
The meter is defined as the what traveled by what in absolute vacuum in 1299792458 of a second?
The meter is defined as the distance traveled by ? in absolute vacuum in 1299792458 of a second.
Standard unit in SI for length?
The meter, also spelled metre.The meter, also spelled metre.The meter, also spelled metre.The meter, also spelled metre.
Why is it necessary to standardize a pH meter?
A pH meter must be standardized because it measures relative potentials and thus relative pH. It is necessary to know to what the measurement is relative. A standard must be measured and the meter set to the known value for this standard. The pH values of other solutions are then measured relative to this standard.
How many fl oz in two cups?
A standard cup is defined as containing six fluid ounces of liquid. If actually intending to mean a glass, a standard glass is defined as eight fluid ounces.
What is a derived untit?
It means that it is defined on the basis of other units. For example, in the SI, the meter and the second are two of the seven "base units"; the unit for area is the square meter (meter x meter), so it is a DERIVED unit; so is the unit for speed, meters / second.
How was lenght of a standard meter defined in the year 1791?
by the demension of the planet earth
Is there a standard for the Newton?
No, there is no standard Newton in a cabinet somewhere. The Newton is defined using the standards for the meter, kilogram and second.
How is a meter and other variable are defined today?
1 meter is one forty-millionth of the polar circumference of Earth.
What is international standard of length?
The international standard of length is defined by the meter, which is the base unit of length in the International System of Units (SI). It is currently defined in terms of the speed of light in a vacuum, where the meter is the distance that light travels in a vacuum in 1/299,792,458 of a second.
What terms was standard meters defined in on 1983?
Originally, a metre was defined as 1/10,000,000th of the distance from the Earth's equator to the North pole. Since 1983 it has been defined as:the length of the path travelled by light in a vacuum during a time interval of 1/299,792,458th of a second.
What is the meter defined by?
the meter is defined as the basic unit of the metric unit.
How was the lenghth of a standard meter defined in the yeat 1791?
In 1791, the length of a standard meter was defined as one ten-millionth of the distance from the North Pole to the Equator along a meridian through Paris. This definition was based on the metric system's goal of creating a universal and rational measurement standard. The meter was intended to be a natural unit, derived from the Earth's dimensions. This definition laid the groundwork for the eventual establishment of the metric system.
What is the standard metric unit for weigt is?
Weight is a force. The standard metric unit of force is the Newton, defined as one kilogram-meter per second squared.
What is a fundamental measurement that is defined by a readily reproducible reference standard?
The meter is a fundamental measurement defined by a readily reproducible reference standard. It is based on the speed of light in a vacuum and is used to quantify length or distance.
How did they come up with the size of the meter?
The meter was originally defined in the late 18th century as one ten-millionth of the distance from the equator to the North Pole, measured along a meridian. This definition aimed to create a universal unit based on natural phenomena. In 1889, the meter was redefined using a platinum-iridium bar known as the "meter standard," which served as a physical reference. Today, the meter is defined based on the speed of light, where it is the distance light travels in a vacuum in 1/299,792,458 of a second, ensuring greater precision and consistency.
How was meter first defined?
the meter is defined as distance that travels 1/299792458
Unit of measurement uniformily used by everyone?
A standard measurement is one that is accepted and used by everyone. If the measurement can be compared to some standard, which does not changes, then it can be universally used. One example is a unit of time such as seconds, minutes, hours, days, years. The meter has a standard, and the foot and inch are defined in reference to the meter.
