Give values of following units
(i) Micron (ii) Nanometre
(iii) Angstrom (iv) Fermi

Explanation

(i) micron (`mu m`) : One micron is equal to `10^(-6)m`. It is also known as micrometre.
(ii) nanometre (nm) : One nanometre is equal to `10^(-9)m`.
(iii) angstrom `(Å)` : The angstrom is the unit in which wavelength of light is measured. It is equal to `10^(-10)m`.
(iv) fermi : One fermi is equal to `10^(-15)m`. It is unit of length in which size of nucleus is measured .