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NEET 2026 Physics question

PhysicsAtomsNEET 2026

In the first excited state of hydrogen atom, the energy of its electron is eV. The radial distance of the electron from the hydrogen nucleus in this case is approximately: (Take , and )

Answer: (3)

Solution

For an electron in a circular orbit around a proton, kinetic energy and potential energy , so total energy . Thus . $r =

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Question ID VK-104816