Search any question & find its solution
Question:
Answered & Verified by Expert
The wave number of first line in Lyman series of hydrogen atom is ( $R$ is Rydberg's constant)
Options:
Solution:
2692 Upvotes
Verified Answer
The correct answer is:
$\frac{3 R}{4}$
According to Rydberg equation:
$\frac{1}{\lambda}=R\left(1-\frac{1}{n^2}\right)$
For first line, electron moves from $n=2$ to the lowest energy level of the electron.
Therefore, corresponding wave no. is given by: $\frac{3 R}{4}$
$\frac{1}{\lambda}=R\left(1-\frac{1}{n^2}\right)$
For first line, electron moves from $n=2$ to the lowest energy level of the electron.
Therefore, corresponding wave no. is given by: $\frac{3 R}{4}$
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.