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12.Atoms
normal
The transition from the state $n = 4$ to $n = 3$ in a hydrogen-like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition
A
$2 \to 1$
B
$3 \to 2$
C
$4 \to 2$
D
$5 \to 4$
Solution
(d) As the transition $n = 4$ and $n = 3$, results in $UV$ radiation and infrared radiation involves smaller amounts of energy $UV$.
So we require a transition involving initial values of $n$ greater than $4$ e.g. $5 \to 4$.
Standard 12
Physics
