Chapter 4: Q80P (page 919)
You are a technician testing the operation of a cyclotron. An alpha particle in the device moves in a circular path in a magnetic field that is directed perpendicular to the path of the alpha particle. You measure the number of revolutions per second (the frequency f) of the alpha particle as a function of the magnetic field strength . Figure shows your results and the best straight-line fit to your data. (a) Use the graph in Figure to calculate the charge-to-mass ratio of the alpha particle, which has charge +2e .On the basis of your data, what is the mass of an alpha particle?(b) With B = 0.300T, what are the cyclotron frequencies f of a proton and of an electron? How do these f values compare to the frequency of an alpha particle? (c) With B = 0.300 T , what speed and kinetic energy does an alpha particle have if the radius of its path is 12.0cm ?
Short Answer
The mass of muon is , the speed of the muons is .The frequency of electron and proton is and the kinetic energy is .