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17/08/2021 11:18 am
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According to Bohr's theory, the angular momentum of an electron in 5th orbit is
(a) 10 h/π
(b) 2.5 h/π
(c) 25 h/π
(d) 1.0 h/π
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17/08/2021 11:21 am
Answer: (b) 2.5 h/π
Explanation:
Angular momentum of an electron in nth orbit is given by
mvr = \(\frac{nh}{2 \pi}\)
For n = 5, we have
Angular momentum of electron
= \(\frac{5h}{2 \pi}\) = \(\frac{2.5h}{ \pi}\)
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