College physics please help

A source of UV light has a wavelength of 150 nm. How much energy does on of its photons have expressed in (a) joules and (b) electron-volts?

a ) E = h . c / λ = 6.63 . 10^–34 . 3 . 10^8 / 150 . 10^–9 = 1.326 . 10^–18 Joules

b ) 1.326 . 10^–18 / 1.6 . 10^–19 = 8.29 eV