COMEDK · Physics · 21. Magnetic Effects of Current
A proton and an \(\alpha\)-particle are projected with the same kinetic energy at right angles to a uniform magnetic field. The ratio of the radii of their paths is
- A \(2: 1\)
- B \(1: 2\)
- C \(1: 1\)
- D \(2: 3\)
Answer & Solution
Correct Answer
(C) \(1: 1\)
Step-by-step Solution
Detailed explanation
Radius of circular path of a charged particle in uniform magnetic field, when it enters perpendicular direction of magnetic field. \[ r=\frac{m v}{B q} \quad \text{...(i)} \] where, \(m=\) mass, \(v=\) velocity and \(q=\) charge. We know that, kinetic energy,…
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