The revised metric system was proposed by:

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DSSSB PGT Chemistry (Female) Official Paper (Held On: 06 Jul, 2018 Shift 1)

Answer 1

CONCEPT:

The Revised Metric System

The metric system is an internationally recognized decimalized system of measurement.
The revised metric system, also known as the International System of Units (SI), was developed to provide a more consistent and universally accepted system of measurement.
The SI system builds on the original metric system and includes well-defined base units such as the meter, kilogram, second, ampere, kelvin, mole, and candela.

EXPLANATION:

The General Conference on Weights and Measures (CGPM) is the international authority responsible for the revised metric system.
The CGPM was established in 1875 under the Metre Convention and is responsible for adopting changes and updates to the SI system.
The CGPM proposed and formalized the revised metric system to ensure standardization across scientific, industrial, and commercial applications worldwide.
Other organizations like the U.S. Metric Association, International Organization for Standardization (ISO), and National Institute of Standards and Technology (NIST) promote or implement standards, but they did not propose the revised metric system.

Therefore, the correct answer is General Conference on Weights and Measures.