What does a refracting telescope use to gather and focus light?
A) eyepiece
B) mirror
C) lens
D) photometer
E) active optics
Correct Answer:
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Q5: Reflecting telescopes suffer from chromatic aberration because
Q6: Short-focal-length lenses and mirrors must be strongly
Q7: What does chromatic aberration separate within refracting
Q8: All telescopes must be operated on site
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Q11: Refracting telescopes use a mirror to gather
Q12: The larger the diameter of a telescope,
Q13: Visible light with wavelengths at the long-wavelength
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