Question: An alpha-particle (mass 4 amu) and a singly charged sulfur ion (mass 32 amu) are initially at rest. They are accelerated through a potential

An alpha-particle (mass 4 amu) and a singly charged sulfur ion (mass

An alpha-particle (mass 4 amu) and a singly charged sulfur ion (mass 32 amu) are initially at rest. They are accelerated through a potential V and then allowed to pass into a region of uniform magnetic field which is normal to the velocities of the particles. Within this region, the a-particle and the sulfur ion move in circular orbits of radii ra and rs, respectively. The ratio (rs/ra) is

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