Description : The international standard of Length is defined in terms of : - a) Length of earth's meridian passing through Paris b) The distance between two lines engraved on a Platinum -iridium Bar c,) Wavelength in vacuum, of radiation of Krypton -86 atom cP None of the above
Last Answer : The international standard of Length is defined in terms of : - The distance between two lines engraved on a Platinum -iridium Bar