In cyclotron, for a given magnet, radius of the semicircle traced by positive ion is directly proportional to (v= velocity of positive ion).
A
v−2
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B
v−1
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C
v
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D
v2
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Solution
The correct option is Cv When a positive ion traces a semicircle, the centrifugal force acting on the particle is balanced by the magnetic force i.e. Fcentrifugal=Fmagnetic