What is Physical Quantity??
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A physical quantity is any phenomenon that can be measured with an instrument or be calculated for. A physical quantity can be expressed as a value, which is the algebraic multiplication of a numerical value and a unit.
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The physical quantities which have only magnitude are known as scalar quantities. It is fully described by a magnitude or a numerical value. Scalar quantity does not have directions. In other terms, a scalar is a measure of quantity.
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