Concepts

Kilogram

Mass of platinum iridium cylinder kept in International Bureau of weights in paris, France

Meter

1.65Million wavelength of orange red coloured radation emitted by krypton 86

Percentage Error

Relative error expressed in percentage

Relative Error

Ratio of error observed in the measurement to the actual value

Absolute Error

Difference in actual value and the measured value

Random Error

Errors arising out of unknown causes with varying value in each measurement

Systematic Error

Errors arising out of known causes

Constant Error

Multiple measurements show the same constant error Constant Error Explanation Weighing machine showing 1 kg in the scale when no…

Dimensions

Expressing physical quantity based on the fundamental unit of mass, length and time

Avgadro Hypothesis

Actual volume occupied by the atom is 2/3 rd of the volume of individual atoms in substance Avgadro Hypothesis Explanation…