Which of the plots shown in the figure represents speed (v) of the electron in a hydrogen atom as a function of the principal quantum number (n)? [JEE ONLINE 26-05-2012] |
A) B
B) D
C) C
D) A
Correct Answer: A
Solution :
[a] Velocity of electron in orbit of hydrogen atom is given by: |
Substituting the values we get, |
or |
As principal quantum number increases, velocity decreases. |
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