Assertion (A) : The potential energy of an electron ...

CBSE Class 12 Physics 2025 All Sets Solved Paper

Question : 14 of 16

Marks: +1, -0

Assertion (A) : The potential energy of an electron revolving in any stationary orbit in a hydrogen atom is positive.
Reason (R) : The total energy of a charged particle is always positive.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A)
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A)
Assertion (A) is true, but Reason (R) is false
Assertion (A) is false and Reason (R) is also false

Solution:

Assertion (A) : False: The potential energy of an electron in an orbit is negative, as it is bound to the nucleus.
Reason (R) : False: Total energy of a charged particle can be negative (e.g., bound systems like atoms) Both Assertion and Reason are false.

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