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In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): A charged particle undergoes non-rectilinear motion in a constant magnetic field. The only force acting on the particle is the magnetic force. Then kinetic energy of this particle remains constant but momentum of the particle changes.
Reason(R) : A force that always acts on the particle in direction perpendicular to its velocity does no work on the particle. But whenever a force acts on the particle, momentum of the particle changes.
  • a)
    Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • b)
    Both Assertion and Reason are true and Reason is not the correct explanation of Assertion.
  • c)
    Assertion is true but Reason is false.
  • d)
    Assertion is false but Reason is true.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In the following question, a Statement of Assertion (A) is given follo...
A force that always acts perpendicular to the velocity of the particle does no work on the particle but changes the direction of the momentum of the particle. Hence reason is the correct explanation of the assertion.
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Most Upvoted Answer
In the following question, a Statement of Assertion (A) is given follo...
Explanation:

Assertion and Reason Analysis:
- The assertion states that a charged particle undergoes non-rectilinear motion in a constant magnetic field with the only force acting on it being the magnetic force.
- The reason given explains that a force acting perpendicular to the particle's velocity does not work on the particle but changes its momentum.

Correct Interpretation:
- Both the assertion and reason are true in this scenario.
- The reason provided is valid but does not fully explain why the kinetic energy remains constant while the momentum changes.
- The magnetic force does not do work on the particle, so the kinetic energy remains constant. However, the change in momentum is due to the force changing the direction of motion of the charged particle.

Conclusion:
- Therefore, option B is the correct choice where both the assertion and reason are true, but the reason is not a complete explanation for the assertion.
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In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-Assertion(A): A charged particle undergoes non-rectilinear motion in a constant magnetic field. The only force acting on the particle is the magnetic force. Then kinetic energy of this particle remains constant but momentum of the particle changes.Reason(R) : A force that always acts on the particle in direction perpendicular to its velocity does no work on the particle. But whenever a force acts on the particle, momentum of the particle changes.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)Both Assertion and Reason are true and Reason is not the correct explanation of Assertion.c)Assertion is true but Reason is false.d)Assertion is false but Reason is true.Correct answer is option 'B'. Can you explain this answer?
Question Description
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