JEE Main 12 Jan 2019 Shift 1 Solved Paper

Section: Physics
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Question : 17 of 90
 
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A proton and an a-particle (with their masses in the ratio of 1 : 4 and charges in the ratio of 1 : 2) are accelerated from rest through a potential difference V. If a uniform magnetic field (B) is set up perpendicular to their velocities, the ratio of theradii rp : ra of the circular paths described by them will be :
[12 Jan 2019 Shift 1]
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