Question

The wave number of the first line of Balmer series of hydrogen is 15200 cm⁻¹ . The wave number of the corresponding line of Li²⁺ ion is-

Answer 1

Answer:

it is proportional to z² so ur ans will be 9 times 15200 mate hope this helps u ans is 136800

Answer 2

$\frac{wave \: number \: of \: h}{wave \: number \: of \: li} = \frac{z2 \: of \: h}{z2 \: of \: li}$

this is valid when number of elections are same

By solving

wave number of li = 9(wave number of hydrogen)