Physics - Modern Physics Question with Solution | TestHub
PhysicsModern PhysicsAtomic structureMedium2 minQB
PhysicsMediumsingle choice
If the potential energy is taken zero at ground state of hydrogen atom in place of infinity then
(i) Total energy of atom will get changed.
(ii) Binding energy of hydrogen atom in ground state will remain unchanged.
(iii) Kinetic energy of electron in ground state will get changed.
(iv) Energy of photon generated because of de-excitation of atom from first excited state will remain unchanged.
Options:
Answer:
B
Solution:
The potential energy shift changes the total energy. Binding energy, which is the difference between the energy of the free electron and the bound electron, remains the same. The photon energy during de-excitation also remains unchanged as it depends on the energy difference between levels.
Answer: Only (i), (ii) & (iv) are correct.
Stream:JEESubject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure
⏱ 2mℹ️ Source: QB
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