Question

1 nm is equal to

• A. 1$\dot{A}$
• B. 10${}^{-3}$mm
• C. 10${}^{-9}$m
• D. 100 $\mu$m

Answer 1

Answer: (C)

10${}^{-9}$m

Nanometer is used mostly for scientific purposes, a nanometer is a unit of length which equals to 1 / 1,000,000,000th of a meter. It is a SI unit with the symbol of nm. It is also known as millimicron.

So, the correct answer is option C