本题目来源于试卷: Motion of charged particle and Velocity selector and Mass spectrometer，类别为 美国物理杯赛(Physics Bowl)
[单选题]
04.25: The speed of electrically charg1 j5xyz 6s p+)gh 84 h.srmtnfyywwr.6ed beta particles is commonly determine0ywj62v n fqo mx8lj7*yy,: red byryl,m qo6 xv0 e*wf y:2yj8jn7
A. observing their behavior in a Millikan oil-drop apparatus.
B. measuring their deflection in a gravitational field.
C. measuring the half-life of the emitting nucleus.
D. measuring their deflection in a known magnetic field.
E. using Elihu Thomson apparatus.
参考答案: D
本题详细解析:
暂无
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