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Magnetics question

2020 · 6 Sep · Shift 1 · Q40
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Magnetics question

2020 · 6 Sep · Shift 1 · Q40

JEE MainPhysicsMagneticsMCQ+4 / −1
A particle of charge q and mass m is moving with a velocity −vi^- v\widehat i−vi(v eee 0) towards a large screen placed in the Y - Z plane at a distance d. If there is a magnetic field B→=B0k^\overrightarrow B = {B_0}\widehat kB=B0​k , the maximum value of v for which the particle will not hit the screen is :
  1. A
    2qdB0m{{2qd{B_0}} \over m}m2qdB0​​
  2. B
    qdB03m{{qd{B_0}} \over {3m}}3mqdB0​​
  3. C
    qdB02m{{qd{B_0}} \over {2m}}2mqdB0​​
  4. D
    qdB0m{{qd{B_0}} \over {m}}mqdB0​​
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