The wavelength of the first line of the Balmer series is given by 1 / λ = R * (1 / 2² - 1 / 3²). What is the value of λ?
Q1. The wavelength of the first line of the Balmer series is given by 1 / λ = R * (1 / 2² - 1 / 3²). What is the value of λ?
Answer: 656 nm
Explanation: Using the Rydberg formula, 1 / λ = R * (1 / 4 - 1 / 9) = R * (5 / 36), λ = 36 / (5 * R) = 656 nm.