What is a physical quantity ?

What is physical quantity ?

What is the physical quantity of ampere.

What is the physical quantity of mole?

What is the physical quantity of the time rate of the angular momentum?

What is the physical quantity measured in cm^(2) ?

What is physical quantity of the unit Joule xx" second"^(2) ?

What is the physical quantity same for X - rays of wavelength 10^(-10) m, red light of wavelength 6800 Å and radiowaves of wavelength 500 m ?

In Poiseuille's method of determination of viscosity , what is the physical quantity that requires greater accuracy in measurement ? Formula eta = (pi P r^4)/(8 VI)

In Poiseuille's method of determination of viscosity , what is the physical quantity that requires greater accuracy in measurement ? Formula eta = (pi P r^4)/(8 VI)