Question

In which year kilograms value was established?
i) 1869
ii) 1876
iii)1875
iv) 1840

Answer 1

Answer:

1889

Explanation:

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Answer 2

Answer:

1889

Explanation:

In 1889, a cylinder of platinum-iridium, the International Prototype of the Kilogram (IPK) became the standard of the unit of mass for the metric system and remained so until 2019. The kilogram was the last of the SI units to be defined by a physical artefact.

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