The energy required to excite an electron from the ground state of hydrogen atom to the first excited state, is

$1.602 × 10^{-14}$ J $1.619 × 10^{-16}$ J $1.632 × 10^{-18}$ J $1.656 × 10^{-20}$ J

$1.632 × 10^{-18}$ J

Energy to excite the e- from n = 1 to n = 2 $E=-3.4-(-13.6)=10.2 ~eV=10.2 \times 1.6 × 10^{-19}$ $1.632 × 10^{-18}$ J