AP EAMCET · PHYSICS · Atomic Physics
A light from Paschen series of hydrogen atom is able to eject photoelectrons from a metal. Then the work function of the metal is
- A \(3: 4 \mathrm{eV}\)
- B \(1.54 \mathrm{eV}\)
- C None of these
- D \(1.1 \mathrm{eV}\)
Answer & Solution
Correct Answer
(D) \(1.1 \mathrm{eV}\)
Step-by-step Solution
Detailed explanation
In Paschen series electron transmits from some higher state to \(n=3\) state So photons of paschen series have energies, ranging from \(E_{\min }=E_{n=4}-E_{n=3}\) \(\begin{aligned} & =-0.85-(-1.5 \mathrm{l}) \\ & =0.66 \mathrm{eV}\end{aligned}\) to…
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