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Units and Measurement
Question
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What do you mean by rational system of units?

Answer

The system in which all similar types of physical quantities are expressed in one unit is known as rational system of units. Rational system is also known as the metric system of units and measurement. 

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Some More Questions From Units and Measurement Chapter

Does the numerical factor in the quantitative measurement depend on the system of unit used?

Is one unit sufficient to measure a physical quantity?

Can a physical quantity have two or more units? Give example.

What are fundamental quantities?

How many fundamental quantities are there in mechanics?

How many fundamental quantities are there in Physics?

Name the fundamental quantities of mechanics.

Name the different system of units in mechanics that are internationally accepted.