Multiple Choice
A filtergram is a photograph of the Sun's surface made
A) in a band of wavelengths in the infrared.
B) in a band of wavelengths in the ultraviolet.
C) using the Zeeman effect.
D) with only those photons emitted in a specific spectral line.
E) none of the others.
Correct Answer:
Verified
Correct Answer:
Verified
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