The meter is currently defined as
A) the distance between two etched lines in a platinum-iridium bar kept in S vres, France.
B) the distance between two etched lines in a platinum-iridium bar kept in Washington, D.C.
C) one ten-millionth of the distance between the North pole and the equator.
D) the distance traveled by light in 1/299,792,458 of a second.
E) 1,553,164.1 wavelengths of red cadmium light in dry air at 25°C.

Question

The meter is currently defined as
A) the distance between two etched lines in a platinum-iridium bar kept in S vres, France. 
B) the distance between two etched lines in a platinum-iridium bar kept in Washington, D.C. 
C) one ten-millionth of the distance between the North pole and the equator. 
D) the distance traveled by light in 1/299,792,458 of a second. 
E) 1,553,164.1 wavelengths of red cadmium light in dry air at 25°C.

Quizplus · Accepted Answer

The Answer of The meter is currently defined as
A) the distance between two etched lines in a platinum-iridium bar kept in S vres, France. 
B) the distance between two etched lines in a platinum-iridium bar kept in Washington, D.C. 
C) one ten-millionth of the distance between the North pole and the equator. 
D) the distance traveled by light in 1/299,792,458 of a second. 
E) 1,553,164.1 wavelengths of red cadmium light in dry air at 25°C.

The Meter Is Currently Defined as