JEE Main 2021PhysicsElectromagnetic InductionMagnetic Flux Faradays And Lenzs LawsmediumNumerical

JEE Main 2021Electromagnetic Induction Question with Solution

From: JEE Main 2021 (Online) 26th August Evening Shift

Question

If the maximum value of accelerating potential provided by a ratio frequency oscillator is 12 kV. The number of revolution made by a proton in a cyclotron to achieve one sixth of the speed of light is ...............

[mp = 1.67 1027 kg, e = 1.6 1019C, Speed of light = 3 108 m/s]

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Show full solutionCorrect answer: 543.4
Correct answer
543.4

Step-by-step explanation

V = 12 kV

Number of revolution = n







n(38.4 1016) = 0.2087 1011

n = 543.4

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About this question

This is a previous-year question from JEE Main 2021, covering the Electromagnetic Induction chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.