If sunspots are cooler than the photosphere (by at least 1000 K) , what will be the peak wavelength in a sunspot spectrum compared with the peak wavelength of the photospheric spectrum?
A) the same, because the spectrum still originates on the Sun
B) either shorter or longer, depending upon the polarity (north or south) of the magnetic field of the spot
C) longer
D) shorter
Correct Answer:
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