Q7-A proton (q=+e, m-u), a deuteron (q=+e, m-2u), and an alpha particle (q=+2e. m-4u) all having the same kinetic energy

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Q7 A Proton Q E M U A Deuteron Q E M 2u And An Alpha Particle Q 2e M 4u All Having The Same Kinetic Energy 1 (14.31 KiB) Viewed 11 times

Q7-A proton (q=+e, m-u), a deuteron (q=+e, m-2u), and an alpha particle (q=+2e. m-4u) all having the same kinetic energy enter a region of uniform magnetic field B. If all of them are moving perpendicular to the magnetic field, what is the ratio of: a) the radius ra of the deuteron path to the radius rp of the proton path and b) the radius ra of the alpha particle path to rp? (2 mark}