I would say that neither are correct. A physical quantity can not only be measured, but also calculated. And a photon is not matter, but has several physical quantities.johncena said:Which definition is more clear and correct ?
1)Any thing that has a measurement is called a physical quantity.
2)Characteristics that can be given to a matter is called physical quantity.
Again, what about calculating a physical quantity? And you need to define 'measurement', before you can use it.johncena said:What about this one ?
Any thing that has a measurement and can be expressed in the form of a number is called physical quantity.
Hootenanny said:a photon is not matter, but has several physical quantities.
johncena said:Why photon is not considered as matter?
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