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

Question

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

Accepted Answer

(c) and (d)
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. As a result, the velocity and the momentum change.

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