[单选题]
A deuteron has the sh ik44dq :q4nfdeo-bp) jd7w7g +jai+ jd v8n+; :mi;lum(trgame charge as a proton but approximately twice the proton mass. Suppose deuterons are;vig l+ mt nmju;:d(8r being accelerated in a cyclotron in an orbit of radius 75 cm at a frequency of 8.0 Mhz. What magnetic field is needed?
A. $0.011 \; T$
B. $0.11 \; T$
C. $1.1 \; T$
D. $11 \; T$
Post time 2024-1-22 02:15:01