A physical quantity measured in one dimension.
Breadth, diameter, radius, depth, height, thickness, distance, displacement, diagonal, side all belong to length
Meter is the unit for length in SI system of units
For convenience we use mm, micrometer, nanometer, Angstrom, femtometer
As larger units we use, kilo meter, astronomical distance, light year
The meter
Length. mass. time (physics)
Length is the distance between the positions of the ends of an object measured at the same time.
In terms of physics, the length makes no difference.
In physics, "Pm" typically stands for Petameter. It is a unit of length equal to 10^15 meters.
The unit dimension of the keyword "length" is L, which represents a one-dimensional measurement in physics and mathematics.
Proper length in physics is the invariant measure of a distance between to separated events. It is considered as the ideal length in a space-time of space-like paths.
The Center of curvature is 2 times the focal length. By the way this is a physics question.
In physics, the Planck length, denoted ℓP, is a unit of length, equal to 1.616199(97)×10−35 meters.
femto metre -A SI Unit of length 1fm=10^-15m
physics
Currently, the Planck length is believed to be the smallest meaningful unit of length in physics. It is thought to represent the scale at which classical notions of spacetime cease to be valid, and quantum effects dominate. However, due to the limitations of our current understanding of physics at such small scales, it is uncertain if anything smaller than the Planck length exists.