Question

what do you understand by unit? What should be the characteristics of a standard unit of measurement ?​

Answer 1

Answer:

Unit should be same in whole world. So, it is called Starndard Unit

Explanation:

S.I. Unit is short form of Starndard Unit

Answer 2

Answer-

Unit of a physical quantity is a fixed standard of some kind taken as a reference to measure that physical quantity.

Characteristics of Standard Unit are:

(i) It should be well defined.

(ii) It should be easily reproducible at all places.

(iii) It should not change with time, and from place to place.

(iv) It should not change with temperature and pressure.

(v) It should be easily approachable.

(vi) It should be of suitable size, i.e., it should neither be too large nor too small, so that any physical quantity can be measured.

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