A standard metre is equal to k wavelengths in vacuum, of the radiation from Krypton 86, where k is

A standard metre is equal to k wavelengths in vacuum, of the radiation

1.	A standard metre is equal to k wavelengths in vacuum, of the radiation from Krypton 86, where k is
Answer» 165076.37 16507637.3 1650763.73 none of these Answer :(C )