Question

what are essential requirement for the choice of standard unit who decides the units ?.​

Answer 1

Answer:

what are the essential requirements for the choice of standard unit? well defined, of suitable size, reproducible at all places and should not change with time, temperature and from place to place.

Explanation:

Characteristics of Standard Unit:

• It should be well defined without any doubt or ambiguity.
• It should be of suitable size. ...
• It should be easily available.
• It should be non-destructible.
• It should not change with time.
• It should not change with the place.
• It should be easily reproducible.

Answer:

• the unit should be of convenient. size.
• 2.it should be possible to define the unit without ambiguity.
• the unit should be reproducible.

The unit should be reproducible. It should be possible to define the unit without vagueness . The value of the unit should not change with space and time.

Answer 2

well defined, of suitable size, reproducible at all places and should not change with time, temperature and from place to place.

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