The wavelength of the radiation emitted when an electron jumps from n = 4 to n = 1 is given by 1 / λ = R (1 / 1² - 1 / 4²).
Q1. The wavelength of the radiation emitted when an electron jumps from n = 4 to n = 1 is given by 1 / λ = R (1 / 1² - 1 / 4²).
Answer: 972 Å
Explanation: Substitute n1 = 1, n2 = 4, and R = 1.097 × 10⁷ m⁻¹ to get 1 / λ = 1.097 × 10⁷ (1 - 1/16) = 1.028 × 10⁷, λ = 972 Å.