本题目来源于试卷: Physics Unit20: Magnetism，类别为 国际高中通用物理
[单选题]
In a mass spectrometer a particle tw)kf p7+ 5jpp:be8.lib 9yqkof mass o f/edg21mdjga,aqdpt6f 58 (m and charge q is accelerated through a potentia68j 2ed5dfqam t /ga(p,o1fgdl difference V and allowed to enter a magnetic field B, where it is deflected in a semi-circular path of radius R. The magnetic field is uniform and oriented perpendicular to the velocity of the particle. Derive an expression for the mass of the particle in terms of B, q, V, and R.
A. $qB^2R^2/V$
B. $qB^2R^2/(2V)$
C. $q^2B^2R^2/V$
D. $q^2B^2R^2/(2V)$
参考答案: B
本题详细解析:
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