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Question -

Which of the following property of a proton can change while it moves freely in a magnetic field?



Answer -

(There may be more than one correct answer.)
1. Mass                            2. Speed
3. Velocity                         4. Momentum

Answer
(c) and (d)
When a proton enters the region of magnetic field, it experiences magnetic force. Due to which the path of the proton becomes circular. As a result, the velocity and the momentum change.

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