The ratio for the speed of the electron in the 3rd orbit of He+ to the speed of the electron in the 3rd orbit of hydrogen atom will be :
Solution
<p>We know that $v \propto {Z \over n}$</p>
<p>$\Rightarrow$ Required ratio $= {{{2 \over 3}} \over {{1 \over 3}}}$</p>
<p>$= 2:1$</p>
About this question
Subject: Physics · Chapter: Atoms and Nuclei · Topic: Bohr's Model of Hydrogen Atom
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