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Question
Cathode rays enter into a uniform magnetic field perpendicular to the direction of the field. In the magnetic field their path will be
Cathode rays enter into a uniform magnetic field perpendicular to the direction of the field. In the magnetic field their path will be
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Solution
The correct option is A circle
Cathode rays are nothing, but electron beams & electrons are -ve charged particles. So, electrons are entering normally into the magnetic field. And we know that a charged particle entering perpendcular to the magnetic field moves in a circular path. So, cathode rays will also follow a circular path in the magnetic field.
Conclusion: So (B) is correct.
Cathode rays are nothing, but electron beams & electrons are -ve charged particles. So, electrons are entering normally into the magnetic field. And we know that a charged particle entering perpendcular to the magnetic field moves in a circular path. So, cathode rays will also follow a circular path in the magnetic field.
Conclusion: So (B) is correct.
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