Multiple Choice
In 1908, George Ellery Hale noticed that the spectral lines from sunspots were split into closely spaced components, and he concluded that the magnetic fields in the sunspots must be very strong. What is the name given to this effect?
A) photoelectric effect
B) Hale effect
C) Doppler effect
D) Zeeman effect
Correct Answer:
Verified
Correct Answer:
Verified
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