試卷名稱:111年 - 111 臺灣綜合大學系統_學士班轉學生聯合招生考試:普通物理A#125311
年份:111年
科目:研究所、轉學考(插大)◆普通物理學
17. A proton, traveling perpendicular to a magnetic field, follows a circular path with the same radius as an alpha particle which is also traveling perpendicular to the same field. The ratio of their speeds, v proton/v alpha is:
(A) 0.5
(B) 4
(C) 1
(D) 2 (Ε) 8.