Kelvin
1 / 273.16 of thermodynamic temperature at triple point of water
7 years ago
9.2 Billion vibrations of transition between two level of cesium-133 atom in ground state
Mass of platinum iridium cylinder kept in International Bureau of weights in paris, France
Errors arising out of unknown causes with varying value in each measurement
Multiple measurements show the same constant error Constant Error Explanation Weighing machine showing 1 kg in the scale when no…