Question

The____ used for measurement of physics quantity is called unit of that quantity

Answer 1

Answer

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Explanation:

Measurement is a process of detecting an unknown physical quantity by using standard quantity. For example: Take a book and use a ruler (scale) to find its length. Suppose the length was 20 cm. You underwent through a process called Measurement where:

1. The unknown physical quantity was the length of the book.
2. The ruler was the standard quantity.
3. 20 was the magnitude.
4. cm was the unit of the book-length.

Units provide specific meaning to the magnitude of a substance. Units of measurement provide a standard to identify the measurement of a physical quantify. For example: If you say that, the volume of your notebook is 25, it provides no exact meaning because it could be 25 mm3 or 25 cm3 or 25 dm3 and many more. But if you use units cm3, it provides accurate meaning that the volume of the notebook is 25 cm3.

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