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What is meant by Physical unit ? |
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Answer» The standard amount of a physical quantity chosen to measure the physical quantity of the same kind is called a physical unit. Measure of a physical quantity= Numerical value of the quantity * size of the unit = nu Relationship between the numerical value and the size of the unit. The numerical value (n) of a physical quantity is inversely proportional to the size of the unit. n α1/ u or nu=constant or n1u1 = n2u2 |
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