Q.

Assertion(A): In bringing an electron towards a proton electrostatic potential energy of the system decreases.

Reason (R):  Potential due to proton is positive.

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a

Both (A) and (R) are true and  (R) is the correct explanation of (A)

b

Both (A) and (R) are false

c

Both (A) and (R) are true and  (R) is not the correct explanation of (A)

d

(A) is true but (R) is false

answer is B.

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Detailed Solution

U=-ke2r

As r decreases , magnitude of U increases, but U decreases.

VP=ker 0

Both (A) and (R) are true and  (R) is not the correct explanation of (A).

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