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Which of the following property of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer.)

  1. Mass
  2. Speed
  3. Velocity
  4. Momentum

Electro-Magnetism

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Answer

velocity and momentum

Reason — When a proton enters the region of a magnetic field, it experiences a magnetic force. Due to this, the path of the proton becomes circular. Hence, its velocity and the momentum changes.

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