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Question

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


A

Mass

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B

Speed

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C

Velocity

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D

None of these

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Solution

The correct option is C

Velocity


The velocity of the proton changes when it enters a magnetic field. When a proton enters a uniform magnetic field it starts to move in a circular path. We know that the velocity of a particle undergoing uniform circular motion keeps on changing, as the direction does not remain constant.


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