WBJEE · Physics · Atomic Physics
In an inelastic collision an electron excites as hydrogen atom from its ground state to a M-shell state. A second electron collides instantaneously with the excited hydrogen atom in the M-State and ionizes it. At least how much energy the second electron transfers to the atom in the M-state?
- A \(+3.4 \mathrm{eV}\)
- B \(+1.51 \mathrm{eV}\)
- C \(-3.4 \mathrm{eV}\)
- D \(-1.51 \mathrm{eV}\)
Answer & Solution
Correct Answer
(B) \(+1.51 \mathrm{eV}\)
Step-by-step Solution
Detailed explanation
Hints: \(E_m=-\frac{13.6}{(3)^2}=-1.51\) Minimum energy required by electron should be \(+1.51 \mathrm{eV}\)
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