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Physics
Problem
The radius of first Bohr's orbit in H-atoms is
η
\eta
η
. The corresponding wavelength of an electron in 2nd orbit is: a.
6
π
η
6\pi\eta
6
π
η
b.
4
π
η
4\pi\eta
4
π
η
c.
2
π
η
2\pi \eta
2
π
η
d.
3
π
η
3\pi \eta
3
π
η
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