Multiple Choice
How can we measure the strength of magnetic fields on the Sun?
A) By looking for the splitting of spectral lines in the Sun's spectrum
B) By observing the sizes of sunspots: Bigger sunspots mean a stronger field
C) By observing auroras here on Earth
D) Only by using sophisticated computer models because there are no observational ways of measuring magnetic field strength
Correct Answer:
Verified
Correct Answer:
Verified
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