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a.Calculate the velocity of an electron ...

a.Calculate the velocity of an electron in the first Bohr's orbit of hydrogen atom (given `r = a_(0))`.
b. Find de Broglie's wavelength of the electron in the first Bohr's orbit.
c. Find the orbital angular momentum of `2p` orbital in terms of `h//2pi` units.

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The correct Answer is:
(a) `2.197xx10^(6)m//s" "(b)3.31Å " "(c ) sqrt(2).(h)/(2pi)`
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