Calculate the largest wavelength which can remove the electron from 1 Bohr's orbit. Given $E_1$ = 13.6 eV

Question

$(a)\;813.4 \overset{\circ}{A}\qquad(b)\;672.4 \overset{\circ}{A}\qquad(c)\;912.24\overset{\circ}{A} \qquad d)\;734 \overset{\circ}{A}\qquad$