the radius of first bohrs orbit for hydrogen is
The radius of first Bohr's orbit for hydrogen is 0.53 Å. The radius of third Bohr's orbit would be:
(1) 0.79 Å
(2) 1.59 Å
(3) 3.18 Å
(4)4.77 Å
Ans: 4.77 Å
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