For the Paschen series, the values of $n_1$ and $n_2$ in the expression $\Delta E = R h c \left( \frac{1}{n_1^2} - \frac{1}{n_2^2} \right)$ are:
- A$n_1 = 1, n_2 = 2, 3, 4 \dots$
- B$n_1 = 2, n_2 = 3, 4, 5 \dots$
- C$n_1 = 3, n_2 = 4, 5, 6 \dots$
- D$n_1 = 4, n_2 = 5, 6, 7 \dots$
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