本题目来源于试卷: Length Contraction and Time Dilaton，类别为 美国物理杯赛(Physics Bowl)
[单选题]
16.49: John is at rest on a plawp,aea s7c4d/tform that he measures to bem93ndul4fzzc:c - w8mrg79 cp o mh(o; 500 m long on the x-axis. He then sees a spac dzm8m: low93r9cfh(o74mc ;p zcu-ngeship moving along the x-axis with a speed of $1.80\times\: 10^8\:m/s$ as it crosses the length of the platform. Sitting in her chair, the spaceship's pilot measures the time it takes her to cross the platform. What type of time interval does she measure and what value does she obtain?
A. Type of time interval is Proper time Time is $2.22\mus$
B. Type of time interval is Improper time Time is $2.22\mus$
C. Type of time interval is Proper time Time is $2.78\mus$
D. Type of time interval is Improper time Time is $2.78\mus$
E. Type of time interval is Neither proper nor improper Time is $3.48\mus$
参考答案: A
本题详细解析:
暂无
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