Question

The ratio of the wavelength of photon corresponding to the $\alpha$-line of Lyman series in H-atom and $\beta$-line of Balmer series in $H{e}^{+}$ is:

• A. 1:1
• B. 1:2
• C. 1:4
• D. 3:16

Answer 1

The correct option is A 1:1