1. Why SI system is a rational system?
And
2. Why SI system is a coherent system
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2
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1. this is a system in which all the similar types of physical quantities are expressed. (in one unit)
2. if is a system of quantities and for a chosen set of base units with no other proportionality factor than one.
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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.
The SI system is also called coherent system of units because of the following reasons: - Coherent, literally means logical or reasonable. - Majority of the SI units are derived from some fundamental units in a reasonable manner.
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