Compute and plot the second energy level E: of an electron in a finite potential well fora=1 nm and U from 2 to 50 V. i.e.. plot E2 versus Ub. m =9.11x10-% ke Use a sufficient number of points to get a smooth curve. . 2mE 2,/(U,-E)E Hint: You have to solve the equation: tan g= " A 2E-U, 6. Have to solve the equation: tan 2mE 2(U. - E)E ( = 2E -U. I solved it graphically by choosing the second intercept. 1.5 1.4 1.3 E2 (eV) 1.2 1.1 a = 1 nm 0.9 O 10 20 30 40 50 U. (ev)