The wavelength of the second line of Balmer series is given by 1 / λ = R [1/2² - 1/4²]. What is λ?
Q1. The wavelength of the second line of Balmer series is given by 1 / λ = R [1/2² - 1/4²]. What is λ?
Answer: 486.1 nm
Explanation: 1 / λ = R [1/4 - 1/16] = 3R/16, λ = 16 / 3R = 486.1 nm.