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प्रश्न
In a cyclotron, a charged particle ______.
पर्याय
undergoes acceleration all the time.
speeds up between the dees because of the magnetic field.
speeds up in a dee.
slows down within a dee and speeds up between dees.
उत्तर
In a cyclotron, a charged particle undergoes acceleration all the time.
Explanation:
Cyclotron is a device used to accelerate positively charged particles (like a-particles, deuterons etc.)
It is based on the fact that the electric field accelerates a charged particle and the perpendicular magnetic field keeps it revolving in circular orbits of constant frequency. Thus a small potential difference would impart enormously large velocities if the particle is made to traverse the potential difference a number of times.
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