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The radius of the first Bohr orbit of hy...

The radius of the first Bohr orbit of hydrogen is `a_0`. The radius of the third orbit would be :

A

`3a_0`

B

`6a_0`

C

`9a_0`

D

`27a_0`

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UNITED BOOK HOUSE-NAVA NALANDA QUESTION PAPER -EXERCISE
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