Consider a hypothetical atom, the energy level of atoms are given in the figure. Choose the correct option(s). (Given $hc=1240 eV-nm$)

An atom in the ground state gets excited by a photon and during de-excitation it emits photons, one of them has wavelength $1240 nm$, then the incident photon may have wavelength of $1240 nm$.

An atom in the ground state gets excited by a collision with an electron and during de- excitation it emits photons, one of them have wavelength $1240$, then incident electron must have an energy of $4ev$.

An atom in the ground state gets excited by a photon and during de-excitation it emits photons, one of them has wavelength $1240 nm$, then the incident photon may have wavelength of $310 nm$.

An atom in the ground state gets excited by a photon of $8eV$ then as a result an ionized atom and an electron of $2eV$ is obtained.