JEE Advanced 2023 Chemistry question on Atomic Structure

For $\text{He}^+$, a transition takes place from the orbit of radius 105.8 pm to the orbit of radius 26.45 pm. The wavelength (in nm) of the emitted photon during the transition is ___.

[Use:
Bohr radius, $a = 52.9$ pm
Rydberg constant, $R_\text{H} = 2.2 \times 10^{-18}$ J
Planck's constant, $h = 6.6 \times 10^{-34}$ J s
Speed of light, $c = 3 \times 10^8$ m s$^{-1}$]