JEE Main Physics question

**Statement 1:** The centre of mass of an electron and a proton, when released from rest, moves (accelerates) towards the proton.

**Statement 2:** The proton is heavier than the electron.

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is TrueCorrect

Answer: (D)

Solution

Since the electrostatic attraction is purely internal and there is no external force, the centre of mass of the two-particle system must remain exactly at rest (it does

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Question ID VK-159172