Final answer:
The ratio of the radii of curvature for a proton and an electron depends on their respective masses and charges.
Step-by-step explanation:
The ratio of the radii of curvature for a proton and an electron depends on their respective masses and charges. The radius of curvature, R, for a charged particle moving in a magnetic field is given by the equation:
R = (m*v)/(q*B)
where m is the mass of the particle, v is its velocity, q is the charge of the particle, and B is the magnetic field strength.
Since the mass and charge of a proton are different from those of an electron, their ratios of radii of curvature will also be different.