The image of a star in the figure below does not look like a single dot due to
A) refraction.
B) chromatic aberration.
C) spectral dispersion.
D) segmented mirrors.
E) diffraction.
Correct Answer:
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Q35: Which of the following is the best
Q36: The diffraction limit of a 4-m telescope
Q37: Before charge-coupled devices (CCDs) were invented, what
Q38: The first astronomical detector was
A) the CCD.
B)
Q39: Why can you see fainter stars with
Q41: A large region of _ wavelengths are
Q42: You hear a news story about an
Q43: Why do astronomers use monochromatic CCDs instead
Q44: An atmospheric window is
A) a giant glass
Q45: A diffraction grating is
A) a filter for
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