WBJEE · Chemistry · Structure of Atom
For the Paschen series the values of \(\mathrm{n}_1\) and \(\mathrm{n}_2\) in the expression \(\Delta E=R h c\left(\frac{1}{n_1^2}-\frac{1}{n_2^2}\right)\) are
- A \(\mathrm{n}_1=1, \mathrm{n}_2=2,3,4 \ldots \ldots\)
- B \(\mathrm{n}_1=2, \mathrm{n}_2=3,4,5 \ldots \ldots\)
- C \(\mathrm{n}_1=3, \mathrm{n}_2=4,5,6 \ldots \ldots\)
- D \(\mathrm{n}_1=4, \mathrm{n}_2=5,6,7 \ldots \ldots\)
Answer & Solution
Correct Answer
(C) \(\mathrm{n}_1=3, \mathrm{n}_2=4,5,6 \ldots \ldots\)
Step-by-step Solution
Detailed explanation
In Paschen series electron shifting to third shell i.e., \(n_1=3\) to \(n_2=4,5,6, \ldots \ldots\)
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