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Question: Answered & Verified by Expert
Assertion : The centre of mass of an electron and proton, when released moves faster towards proton.
Reason : This is because proton is heavier.
PhysicsWork Power EnergyAIIMSAIIMS 2019 (26 May)
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion.
  • B If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C If assertion is true but reason is false.
  • D If both assertion and reason are false.
Solution:
1884 Upvotes Verified Answer
The correct answer is: If both assertion and reason are false.
The position of centre of mass of electron and proton remains at rest, and their motion is due to (internal) forces of electrostatic attraction, which are conservative. No external force, what so ever is acting on the two particles.

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