Calculate the radius of the first Bohr orbit of a hydrogen atom. Given that `h= 6.63 xx 10^(-27)` erg.s, `m= 9 xx 10^(-28)g` and charge of an electron `=4.8 xx 10^(-10)` esu

Explanation

To calculate the radius of the first Bohr orbit of a hydrogen atom, we can use the formula for the radius of the nth orbit in the Bohr model:

\[ r_n = \frac{n^2 h^2}{4 \pi^2 m e^2 k} \]

Where:
- \( r_n \) is the radius of the nth orbit,
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