110 年 - 110 國立臺灣大學_碩士班招生考試_光電工程學研究所:近代物理學(B) (含近代物理75%、電子學25%)#101256-阿摩線上測驗
110 年 - 110 國立臺灣大學_碩士班招生考試_光電工程學研究所:近代物理學(B) (含近代物理75%、電子學25%)#101256
3. According to uncertainty principle, please find lowest energy where an electron can have in inside the atom (the size of atom is .(10%)
4. A particle limited to the x axis has the form of elsewhere. (1) Please find the probability that particle can be found between x=0.3 to 0.4. (5 %) (2) Find the expectation value of (x) of the particle's position (-1 to 1). (5%)
5. A particle is in a cubic box with infinitely hard walls. The edges length is L. The wave function can be written as
Please find the normalization constant A (5%)
(a) What type of device is each transistor now, enhancement mode (no channel when = 0) or depletion mode (strongly inverted when = 0)? Explain your answers. (5 %)
11. Assume the transistor shown in Fig. 1 has β = 50.