Question:medium
An electron in Hydrogen atom jumps from the second Bohr orbit to the ground state and emits a photon. This photon strikes a material. If the work function of the material is 4.2 eV, then the stopping potential is
An electron in Hydrogen atom jumps from the second Bohr orbit to the ground state and emits a photon. This photon strikes a material. If the work function of the material is 4.2 eV, then the stopping potential is
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Photoelectric steps:
\begin{itemize}
\item Find photon energy.
\item Subtract work function.
\end{itemize}
Updated On: Mar 2, 2026
- 2 V
- 4 V
- 6 V
- 8 V
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The Correct Option is A
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