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  • Calculate the wavelength associated with an electron moving in 3rd Bohr orbit of -atom.Opt

Calculate the wavelength associated with an electron moving in 3rd Bohr orbit of \mathrm{H}-atom.

Option: 1

\frac{5 }{2}\pi


Option: 2

6\pi


Option: 3

\frac{7}{2}\pi


Option: 4

3\pi


Answers (1)

best_answer

\mathrm{n=3}

\mathrm{n \lambda=2 \pi r}

 \mathrm{\lambda=\frac{2 \pi}{3} \times r_3}=\mathrm{2\pi\times0.529\times 3}

                              =3.174\pi

                               \simeq 3 \pi

Option (4) is the right answer.

Posted by

Sanket Gandhi

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