Q. The wave number of the spectral line in the emission spectrum of hydrogen will equal to times the Rydberg’s constant if the electron jumps from ______.
A. n = 10 to n = 1
B. n = 3 to n = 1
C. n = 2 to n = 1
D. n = 9 to n = 1
Answer: n = 3 to n = 1
