Multiple Choice
A spherical mirror suffers from spherical aberration because
A) different colors are focused at different distances from the mirror.
B) a mirror of this shape is structurally weak and will sag under its own weight, distorting the image.
C) the starlight is distorted by turbulence in Earth's atmosphere.
D) different parts of the mirror focus the light at different distances from the mirror.
Correct Answer:

Verified
Correct Answer:
Verified
Q44: Suppose Ole Rømer had been able to
Q45: The diameter of Earth is about 13,000
Q46: Gravitational radiation has been found<br>A) indirectly, by
Q47: A small refracting "spyglass" telescope has an
Q48: How does the resolution of a typical
Q50: How much time elapsed from when Ole
Q51: To what does the term "aberration" in
Q52: Devices to detect X-rays once they have
Q53: Increasing the exposure time of an image
Q54: A Newtonian telescope uses<br>A) only one mirror