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The radius of the second Bohr orbit for ...

The radius of the second Bohr orbit for hydrogen atom is [Planck's constant `(h)=6.6262xx10^(-34)* Js`, mass of electron=`9.1091xx10^(-31)kg`, charge of electron `=1.60210xx10^(-19)C`, permittivity of vacuum `(in_(0))=8.854185xx10^(-12)kg^(-1)*m^(-3)*A^(2)`]-

A

`2.12Å`

B

`1.65Å`

C

`4.76Å`

D

`0.529Å`

Text Solution

Verified by Experts

The correct Answer is:
A
For H - atom (Z = 1), `r_(n)=0.529 n^(2)Å`
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