What will be the longest wavelength in the Balmer series of hydrogen spectrum?(a) 6557 × 10^-10 m(b) 5557 × 10^-10 m(c) 9557 × 10^-10 m(d) 1557 × 10^-10 mThe question was asked in an online quiz.I need to ask this question from Bohr Model of the Hydrogen Atom in portion Atoms of Physics – Class 12

What will be the longest wavelength in the Balmer series of hydrogen s

1.	What will be the longest wavelength in the Balmer series of hydrogen spectrum?(a) 6557 × 10^-10 m(b) 5557 × 10^-10 m(c) 9557 × 10^-10 m(d) 1557 × 10^-10 mThe question was asked in an online quiz.I need to ask this question from Bohr Model of the Hydrogen Atom in portion Atoms of Physics – Class 12
Answer» CORRECT option is (a) 6557 × 10^-10 m Explanation: \(\FRAC {1}{\LAMBDA }\) = R \( [ \frac {1}{n_1^2} – \frac {1}{n_2^2} ] \) \(\frac {1}{\lambda }\) = 1.098 × 10^7 \( [ \frac {1}{2^2} – \frac {1}{3^2} ] \) λ = 36 × \(\frac {10^{-7}}{5}\) × 1.098 λ = 6557 × 10^-10 m.

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