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  4. An electron with kinetic energy 10 eV is incident on a hydrogen atom in its ground state. The collision

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Q. An electron with kinetic energy 10 eV is incident on a hydrogen atom in its ground state. The collision

NTA AbhyasNTA Abhyas 2020Atoms

Solution:

10 eV electron cannot excite a hydrogen atom Hence collision is elastic as minimum energy required to excite is 10.2 eV. so no change in total K.E of system is possible.