AP EAMCET · PHYSICS · Atomic Physics
Speed of electron in its Ist Bohr's orbit is given by \(2.18 \times 10^6 \mathrm{~ms}^{-1}\). If the time period of electron in \(n\)th orbit is measured as 4.10 femto second, the value of \(n\) is
- A 1
- B 2
- C 3
- D 4
Answer & Solution
Correct Answer
(C) 3
Step-by-step Solution
Detailed explanation
Given, speed of the electron in 1st Bohr's orbit, \(v_1=2.18 \times 10^6 \mathrm{~m} / \mathrm{s}\) Time period of \(n\)th orbit, \(T_n=4.10 \mathrm{f}-\mathrm{s}=4.1 \times 10^{-15} \mathrm{~s}\) Radius of Bohr's first orbit, \(r_1=0.53 \times 10^{-10} \mathrm{~m}\)…
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