NEET2019PhysicsWork, Power and EnergyActual
Assertion : The centre of mass of an electron and proton, when released moves faster towards proton. Reason : This is because proton is heavier.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- DIf both assertion and reason are false.
Correct answer
D. If both assertion and reason are false.
Step-by-step solution
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.