The person who discovered the relationship between the wavelengths of the spectral lines of hydrogen was the:
A) German optician Joseph von Fraunhofer.
B) Swiss mathematician Johann Balmer.
C) New Zealand physicist Sir Ernest Rutherford.
D) Danish physicist Niels Bohr.

Question

Quizplus · Accepted Answer

Johann Balmer discovered the relationship between the wavelengths of the spectral lines of hydrogen, which is now known as the Balmer series. Joseph von Fraunhofer studied the spectral lines of elements and developed the first spectroscope, but did not discover this relationship specifically. Ernest Rutherford is known for his work in nuclear physics and Niels Bohr is known for his work on the structure of the atom, which built upon Balmer's discovery.

The Person Who Discovered the Relationship Between the Wavelengths of the Spectral