Which of the following is the smallest unit of measurement?
a) Millimeter b) Angstrom c) Fermi d) Meter

Solution:

Millimeter, angstrom, fermi, and meter are different measuring units used to measure the length, height, distance, etc.

We know that,

Meter is the SI unit of length.

1 millimeter = 1/10³ meter

1 angstrom = 1/10¹⁰ meter

1 fermi = 1/10¹⁵ meter

From the above relationships, it is clear that fermi has the least value.

Hence, in the given options the smallest unit of measurement is Fermi.

Which of the following is the smallest unit of measurement? a) Millimeter b) Angstrom c) Fermi d) Meter

Summary:

Option C - Fermi is the smallest unit of measurement.