1.

In an atom when electrons transition from excited state to ground state, which of the statement is true ?

Answer»

K increase and U and E decreases.
K DECREASE and U and E remains constant.
K and E decreases and U increases.
K, U and E decreases.

Solution :K increase and U and E decreases.
In `Kprop(1)/(n^(2))` as n decreases K increases.
In `Uprop-(1)/(n^(2))` as n decreases the NEGATIVE valueof U increases hence POTENTIAL ENERGY decreases.
In `Eprop-(1)/(2n^(2))` as n decreases, the negative value of E increases hence total energy decreases.


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