Measurement is the comparison of an unknown quantity with an unknown quantity called

unit

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physical quantity

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symbol

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magnitude

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Solution

The correct option is A
unit

Explanation for correct answer :
Measurement is the comparison of an unknown quantity with an unknown quantity called a unit.
The value obtained from measuring a quantity is called its magnitude.
The magnitude of a quantity is expressed as numbers in its units.
Hence, option (a) unit is correct.

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Similar questions

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