In a cyclotron, a charged particle [NCERT Exemplar]
(a) undergoes acceleration all the time.
(b) speeds up between the dees because of the magnetic field.
(c) speeds up in a dee.
(d) slows down within a dee and speeds up between dees.
Answers
Ans is. a) Undergoes acceleration all the time.
- Inside cyclotron a charged particle gain centripetal acceleration provided by the magnetic field and Undergoes continuous acceleration.
➢ Cyclotron
Early accelerators can only accelerate charged particles once in a high-voltage electric field, so the energy that particles can reach is limited by high-voltage technology. To this end, pioneers of accelerators explored the use of the same voltage to accelerate charged particles multiple times in the 1920s, and successfully demonstrated a straight line that accelerates sodium and potassium ions twice with the same high frequency voltage The device also pointed out that the repeated use of this method can in principle accelerate ions to arbitrarily high energy (in fact, due to the influence of special relativity , it can only be accelerated to 25-30MeV). However, due to restrictions of the high-frequency technology, such a device is too large, too expensive, does not apply to accelerate light ions, such as protons for deuteron other nuclei study, the results failed to develop applications.
Answer:
Cyclotron is a device used to accelerate positively charged particles (like a-particles, deutrons 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.
Explanation:
option A is correct