MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryAtomic StructureIntro
[KCET 2010] The wave number of a spectral line in the emission spectrum of hydrogen will be equal to (8/9)R_H if the electron jumps from
0.n = 3 to n = 1
1.n = 10 to n = 1
2.n = 9 to n = 1
3.n = 2 to n = 1
Explanation
ν̄ = R_H(1/n₁² − 1/n₂²). For n₁=1, n₂=3: ν̄ = R_H(1 − 1/9) = 8R_H/9. ✓
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