問題詳情
47. In a certain cyclotron a proton moves in a circle of radius 0.50 m. The magnitude of the magnetic field is 1.20 T. What is the oscillator frequency? (The mass of proton mp = 1.67×10-27 kg)
(A) 1.83×107 Hz
(B) 2.53×107 Hz
(C) 3.62×107 Hz
(D) 4.71×107 Hz
(E) 5.83×107 Hz
參考答案
答案：A
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中