The current definition of a kilogram is the mass of a platinum-iridium cylinder kept in
A) the United States.
B) France.
C) England.
D) Japan.

Question

Quizplus · Accepted Answer

The current definition of a kilogram was based on the mass of a platinum-iridium cylinder known as the International Prototype of the Kilogram (IPK), which was kept in France, at the International Bureau of Weights and Measures (BIPM) near Paris. However, it's important to note that as of May 20, 2019, the kilogram is now defined by the Planck constant, not by a physical object.

The Current Definition of a Kilogram Is the Mass of a Platinum-Iridium