Two singly ionised particles and have masses and

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

Two singly ionised particles PP and QQ have masses 2m2m and 3m3m, respectively. They move in the same uniform magnetic field with their velocities perpendicular to the field. If the radii of their circular paths are 4 cm4\,\text{cm} for PP and 5 cm5\,\text{cm} for QQ, what is the ratio KPKQ\dfrac{K_P}{K_Q} of their kinetic energies? (a) 65\dfrac{6}{5} (b) 2425\dfrac{24}{25} (c) 2524\dfrac{25}{24} (d) 1625\dfrac{16}{25}

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