The radius of the nth orbit of hydrogen atom is given by rn = n² r₁. What is the radius of the third orbit?
Q1. The radius of the nth orbit of hydrogen atom is given by rn = n² r₁. What is the radius of the third orbit?
Answer: 9 r₁
Explanation: Substitute n = 3 in the given formula: r₃ = 3² r₁ = 9 r₁.