The wavelength of the first line of Paschen series is given by 1 / λ = R * (1 / 3² - 1 / 4²). What is λ?
Q1. The wavelength of the first line of Paschen series is given by 1 / λ = R * (1 / 3² - 1 / 4²). What is λ?
Answer: 1282 nm
Explanation: Use the Rydberg formula to find λ = 1 / (R * (1/9 - 1/16)) = 1282 nm.