A proton and a deuterium nucleus having certain kinetic energy enter in a uniform magnetic field perpendicular to it. Which of the following statements are incorrect ? I. Proton has more frequency of revolution. II. Deuterium nucleus has more frequency of revolution. III. The particle which has greater speed has more frequency of revolution.

 

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A proton and a deuterium nucleus having certain kinetic

energy enter in a uniform magnetic field perpendicular to it.

Which of the following statements are incorrect ?

I. Proton has more frequency of revolution.

II. Deuterium nucleus has more frequency of revolution.

III. The particle which has greater speed has more

frequency of revolution.

(a) I and II (b) II and III

(c) I and III (d) I, II and III


Answer: b