X different wavelengths may be observed in the spectrum from a hydrogen sample if the atoms are exited to states with principal quantum number n = 6 ? The value of X is ______________.
Answer (integer)
15
Solution
No. of different wavelengths = ${{n(n - 1)} \over 2}$<br><br>$= {{6 \times (6 - 1)} \over 2} = {{6 \times 5} \over 2} = 15$
About this question
Subject: Physics · Chapter: Atoms and Nuclei · Topic: Bohr's Model of Hydrogen Atom
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