Question

Which of the transitions in hydrogen atom emits a photon of lowest frequency (n = quantum number)(a) n = 2 to n = 1(b) n = 4 to n = 3(c) n = 3 to n = 1(d) n = 4 to n = 2

Answer 1

option (c) n=3to n=1

Answer 2

according to me the correct answer is option c) n = 3 to n = 1