Question

2. What do you understand by the term unit ?
3. What are the three requirements for selecting a unit of a physical quantity ?

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Answer 1

(1) It should be possible to define the unit without ambiguity. (2) The unit should be reproducible. (3) The value of units should not change with space and time.

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Answer 2

Answer:

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Explanation:

2. The definition of a unit is a fixed standard amount or a single person, group, thing or number. An example of a unit is a single apartment in an apartment building.

3. (1) It should be possible to define the unit without ambiguity. (2) The unit should be reproducible. (3) The value of units should not change with space and time.

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