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The reference standard used for the measurement of a physical quantity is calledA) Standard quantityC) ConstantB) dimensionsD) Unit |
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Answer» Option (D) is correct. Explanation:A reference standard used for measurement of a physical quantity is called a unit. It is arbitrarily chosen but internationally accepted. For example, metre is a unit of length, second is a unit of time, kilogram is unit of mass, Newton is unit of force, Pascal is unit of pressure, joule is unit of energy, thanks |
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