Question

One nanometre is equal to what?

Answer 1

Conversion:

1. Nanometer is an unit to measure very small length.
2. Generally it is used to measure wavelength, size of particles in air, microorganism etc.
3. $1$ nanometer or $1nm$ is equivalent to ${10}^{-6}mm$.
4. $1mm$ is equivalent to ${10}^{-3}m$.
5. So $1nm$ is equivalent to ${10}^{-9}m$.

Hence, $1nm$ is equivalent to ${10}^{-9}m$