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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) ?

Options

  1. AB
  2. BD
  3. CC
  4. DA

Correct answer

A. B

Step-by-step solution

Velocity of electron in n^ th orbit of hydrogen atom is given by : V_n= 2 K Z e^2 n h Substituting the values we get, V_n= 2.2 10^6 n ~m / s or V_n 1 n As principal quantum number increases, velocity decreases.

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