Question

solve this question plz.........​

Answer 1

❤ḙ!ժ Պṳ♭ᾰԻᾰк .❤

energy of incident Photon,

E = hc/ lemda

= 1242 eV nm/ 300nm

= 4.14 eV

electron will be knocked out of the hydrogen atom if:-

E > 13.6 eV

electron will go to First excited state if :-

E > 10.2 eV

so only electron will keep orbiting in the ground state of the atom.

тℏᾰℵкṧ

Answer 2

referred to above attachment please ....