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Radius of first bohr's orbit of hydrogen...

Radius of first bohr's orbit of hydrogen atom is 0.53 A then the radius of `3^(rd)` bohr orbit is :-

A

`0.70 "Å"`

B

1.59 `"Å"`

C

3.18 `"Å"`

D

4.77 `"Å"`

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The correct Answer is:
D
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