Figure 1 . Energy spectrum for different states as a function of
the screening parameter.
The plot of the energy spectrum is shown in Fig.1 for the ground, first
excited and second excited states as a function of the screening
parameter for a fixed values of the potential parameters and . It can be
observed that the energy levels of the ground, first excited and second
excited states decrease as the screening parameter is increased. In
Fig.2, we displayed the behaviour of the wave function of the Screened
Kratzer potential for different eigenstates. For the parameters , as it
increase, their nodes get steeper. For the variation of , the converse
is the case. It is also observed that for the wavefunction for the first
excited state decreased first and then rose steeply for the variation of
. This steepness happened gradually for .