Passage VI
Consider an electron that is constrained to move along the x-axis. The probability of finding the electron at any given location, x, along the axis is obtained from a distribution function, DF, which is related to the electron's energy. The greater the value of DF at a given x, the greater the probability of finding the electron at that x. Classical theory and quantum theory can be used to derive 2 forms of DF: a classical form and a quantum form.
Table 1 lists the electron energy corresponding to each of 4 DFs. Figure 1 shows the classical and quantum forms of each DF.
38. What is the approximate maximum value of Quantum DF4, and at what approximate locations does Quantum DF4 have this value?
Your Answer is
Correct Answer is J
Explanation
Look at the fourth picture of figure 1, when the Quantum DF represented by the dotted line is at its maximum value (that is, at the peak), the abscissa is about -0.4 and +0.4, and the ordinate is 1.8