38. Suppose an electron is trapped in a one-dimensional infinite well of width L = 2nm: U = 0 from 0 to L, U =∞o everywhere else. Obviously the particle can neverclimb out of well. Which of the following values is closest to the energy of thephoton (in eV) that emits when the electron make the transition from level n = 4 ton= 3. (h = 6.6✖