Question

which is the smallest unit automatic NM micromatic angstrom

Answer 1

“What is the shortest unit of length among micron, nanometer, angstrum, fermimeter? “

Now:-

Micron = 10^(-6) m

Nano Meter =10^(-9) m

Angstrom = 10^(-10) m

Fermi meter = 10^(-15) m

So Fermimeter is the smallest among the cited units (the Large -> Small order being Micron, Nano Meter, Angstrom, Fermi meter).