A) kinetic energy decrease, potential energy increase but total energy remians same
B) kinetic energy and total energy decrease but potential energy increases
C) its kinetic energy increases but potential energy and total energy decrease
D) kinetic energy, potential energy and total energy decrease
Correct Answer: C
Solution :
Speed of electron in the orbit is given by \[{{V}_{n}}\propto \frac{z}{n}\] An orbit number decreases, velocity of electron increases and results in increase in K.E. Potential energy is given by P.E. = ? 2K.E, so Potential energy decreases Total energy is given by T.E. = ? K.E., so total energy of electron also decreases.
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