Answer:
The correct option is: A nanometer is equivalent to 10 Angstroms (Å)
Explanation:
The nanometre, formerly known as millimicrometre, is one of the units of length that is equivalent to one billionth of a meter. It is denoted by nm. Therefore, 1 nm = 1 ×10⁻⁹ m.
This unit is used for expressing dimensions on the atomic level.
Also, one nanometre is equal 10 angstrom. That is, 1 nm = 10 Å.