阿摩線上測驗
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試卷名稱：110年 - 110 國立臺灣大學_碩士班招生考試_物理系天文物理所與應用物理所(三所聯招):近代物理學(A)#113053
年份：110年
科目：研究所、轉學考(插大)-近代物理學
1. A train of proper length Lo is moving at a velocity v = 0.8c towards a tunnel of which the proper distance is also L0．At time t = O, the front end of the train meets the entrance of the tunnel viewed both from the ground and the train. Suppose the time when the rear end of the train mects the entrance of the tunnei viewed from the ground and the train is tA and t'A, respectively, and the time when the front end of the train meets the exit of the tunnel viewed from the ground and the train is tB and t'B. Which of the following is incorrect?
(A) In the frame of the ground, tA ＜ tB.
(B) In the frame of the train, t'B ＜ t'A.
(C) In the frame of the train, the duration from the train entering the tunnel and entirely get out of the tunnel is
.
(D) 
(E)t'A = t'B.
