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Chemistry
Chemistry
Problem
If the speed of electron in the Bohr's first orbit of H-atom is
X
X
X
, the speed of the electron in the third orbit is : a.
X
/
9
X/9
X
/9
b.
X
/
3
X/3
X
/3
c.
3
X
3X
3
X
d.
9
X
9X
9
X
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