MCQ on Cyclotron: Previous trends reveal that NEET/JEE aspirants find Physics as the most challenging section amongst the other sections. But most of them fail to decipher the reason behind this. This particularly can be as the candidates taking up this examination are predominantly medical aspirants with their subject of interest being Biology. Also, sections like Physics are more on theories, laws, numerical as opposed to Biology which is more of fact-based, life sciences and comprising of substantial explanations.

In this post we are providing you MCQ on Cyclotron, which will be beneficial for you in upcoming NEET, AIIMS, JEE, WBJEE, Medical and Engineering Exams.

MCQ on Cyclotron

 

Q1. The cyclotron frequency of an electron grating in a magnetic field of 1 T is approximately _____.
a) 28MHz
b) 280MHz
c) 2.8 GHz
d) 28GHz

Q2. A  proton of energy 100 eV is moving perpendicular to a magnetic field 10-4 T. The cyclotron frequency of the proton in radian/sec is ________.
a) 2.80x 10⁶
b) 9.6x 10³
c) 5.6x 10⁶
d) 1.76x 10⁶

Q3. An alternating electric field of frequency f is applied across the dees (radius = R) of a cyclotron that is being used to accelerate protons (mass = m). The operating magnetic field (B) used in the cyclotron and the kinetic energy (K) of the proton, produced by it, are given by ______.
a) B= mf/e and K= 2mπ²v²R²
b) B= 2πmf/e and K= m²πvR²
c) B= 2πmf/e and K= 2mπ²v²R
d) B=  mf/e and K= m²πvR²

Q4. The energy of emergent protons in MeV from a cyclotron having a radius of its dees 2 m and applied magnetic field 0.8 T is (mass of proton = 1.67 x 10^-27 kg).
a) 0.961x 10^-11 J
b) 1.22x 10^-11 J
c) 1.5 x 10^-12 J
d) 12x 10^-11 J

Q5. The angular frequency of a cyclotron is independent of _______.
a) Speed 
b) Mass 
c) Magnetic field
d) Charge

Q6. Cyclotron can be used in _______.
a) Particle therapy to treat cancer
b) source of high energy beam for a nuclear physics experiment 
c) Produced short-lived positron -emitting isotopes for PET imaging
d) All of the above

Q7. The maximum kinetic energy of the positive ion in the cyclotron is _______.
a) qBR^2/2m
b) q²B²R²/2m
c) q²B²R²/m
d) qBR/m

Q8. A Cyclotron can accelerate _______.
a) β particles
b) α particles
c) High -velocity gamma rays 
d) High-velocity X-rays

Q9. Suppose a cyclotron is operated at an oscillator frequency of 12 MHz and a dee radius of 53cm. What is the resulting kinetic energy of the deuterons?
a) 16.6 MeV
b) 12 MeV
c) 15MeV
d)  14MeV

Q10. Cyclotron cannot accelerate _______.
a) Electrons
b) Neutrons
c) Positive ions
d) Both (1) and (2)

 

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