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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 Const. h = `6.6262 xx 10^(-34) J * s` , mass of electron `e = 1.60210 xx 10^(-19) C` , permittivity of vacuum `in^(0) = 8.854185 xx 10^(-12) kg ^(-1) * m^(-3) * A^(2)`) -

A

0.529 Å

B

2.12 Å

C

1.65 Å

D

4.76 Å

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