Physics

Problem

An electron in hydrogen is reported to be in a circular orbit of radius

2.12\times10^{-10}\,\text{m}

with a speed of

1.10\times10^{6}\,\text{m s}^{-1}

. Using

m_e = 9.11\times10^{-31}\,\text{kg}

and

\hbar = 1.055\times10^{-34}\,\text{J s}

, what is the approximate percentage difference between its calculated angular momentum and the nearest allowed Bohr value? a) 0\% b) 5\% c) 0.7\% d) 1.4\%

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