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A non-conducting disc of radius r and uniform positive surface charge density σ isplaced on the ground, with its axis vertical. A Particle of mass m and charge q is droppedalong the axis of the disc from a height h with zero initial velocity. The ratio of charge tomass of the particle is given by
Paragraph -III For Question No.s 15 to 16:
A non-conducting disc of radius r and uniform positive surface charge density σ isplaced on the ground, with its axis vertical. A Particle of mass m and charge q is droppedalong the axis of the disc from a height h with zero initial velocity. The ratio of charge tomass of the particle is given by
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