The energies of the GS and first excited states
of a particle of mass 1/2 in a potential V (x)
are -3, -1 respectively, where ħ = 1 . If the
corresponding wavefunctions are related by
ψ₁ = 40 sinh æ, then the ground state
eigenfunction is?
1. ψο = A(cos hx)-2
2. ψο = A(cos hx)-1/2
3. ψο = A(cos hx)-5/2
4. ψο = A(cos hx)-3/2