Atomic Structure: JEE Main 2026 Chemistry question

The hydrogen spectrum consists of several spectral lines in Lyman series ($L_1, L_2, L_3 \ldots$; $L_1$ has lowest energy among Lyman series). Similarly it consists of several spectral lines in Balmer series ($B_1, B_2, B_3 \ldots$; $B_1$ has lowest energy among Balmer lines). The energy of $L_1$ is $x$ times the energy of $B_1$. The value of $x$ is ______ $\times 10^{-1}$. (Nearest integer)