1.1 [6 points] Describe briefly the Stem-Gerlach experiment for the measurement of the magnetic moments of atoms, and discuss the significance of the results.

4. Organized anarchy

(一)何謂典範?

(二)典範發展的過程 為何?

(三)請從近年來我國政府的運作中,試舉一例說明典範移轉(paradigm shift)的現象。

1.2 [4 points] Explain Larmor precession.

1.3[5 points] Which of the following are characteristics about the quantum harmonic oscillator? Choose all that apply. I. Evenly spaced energy states Ⅱ. The potential energy function is symmctric about the origin in the position coordinateⅢ. The ground state has zero kinetic energyⅣ. The probability of finding the particle outside the classically ailowed range is nonzero V. The ground state energy is zero

1.4[4 points] For a single quantum barmonic oscillator that has an angular frequency w. At temperature T, what is the partition function?

1.5 [6 points] Write down the distribution f function for photons and fermions, respectively.

1.6[4 points] In an experimental observation of the photoelectric effect, docs increasing the light amplitude change the stopping potcntial?

1.7 [5 points] What is the physical interpretation of the horizontal intercept?