Describe the motion of a charged particle in a cyclotron if the frequency of the radio frequency `(rf)` field were doubled.

Explanation

The particle will reach the gap in half the time that it should take. So, when it reaches the gap between dees then polarity is not changed and it continues to follow the same radius on the other dee. When the particle reaches the gap again on the other side then it faces reverse polarity, which causes the particle to decelerate.
It means, the charged particle will accelerate and decelerate alternately between the dees of cyclotron. Also, the radius of path in the dees will remain unchanged.