Multiple Choice
What causes the characteristic blue color of a reflection nebula?
A) Scattering of starlight from dust grains within the nebula
B) Thermal (blackbody) radiation from dust grains heated to high temperatures by stellar UV
C) Electrons dropping from n = 3 to n = 2 in hydrogen atoms
D) Electrons dropping from n = 2 to n = 1 in hydrogen atoms
Correct Answer:
Verified
Correct Answer:
Verified
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