Class 12PhysicsDual Nature of Radiation and MatterEinstein's Photoelectric Equation and Energy Quantum of Radiation
MediumAn electron and a proton are separated by a large distance. The electron starts approaching the proton with an initial kinetic energy of $3 \, eV$. The proton captures the electron and forms a hydrogen atom in the second excited state. The resulting photon is incident on a photosensitive metal with a threshold wavelength of $4000 \, Å$. What is the maximum kinetic energy of the emitted photoelectron? (In $eV$)
- A$1.99$
- B$3.3$
- C$1.41$
- D$7.61$
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