In a sample of ions, a Li++ ion electron in first Bohr orbit is excited to a level by a radiation of wavelength λ. When the ion gets de-excited to the ground state in all possible ways (including intermediate emissions), a total of six spectral lines are observed. What is the value of λ ? (Given, h=6.63×10−34Js,c=3×108ms−1

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

11.4 nm

9.4 nm

10.8 nm

12.3 nm

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

6=n(n−1)2⇒n=41λ=Rz2112−1421λ=1.097×10711−116×9mλ=10.8nm

Watch 3-min video & get full concept clarity