The Chandra X-ray observatory focuses X rays with _____________________ mirrors.
  • reflecting telescopes
  • infrared light
  • extreme infrared
  • grazing incidence
A 10-meter telescope has a larger ______________________ than a 4-meter telescope.
  • light-collecting area
  • refracting telescopes
  • reflecting telescopes
  • grazing incidence
The twin 10-m Keck telescopes can work together to obtain better angular resolution through a technique known as ____________________.
  • extreme infrared
  • in space
  • infrared light
  • interferometry
The ________________ of the Hubble Space Telescope is better for shorter (bluer) wavelengths of light than for longer (redder) wavelengths of light.
  • Spectrographs
  • angular resolution
  • infrared light
  • interferometry
Galileo's telescope designs using lenses were examples of ____________________.
  • refracting telescopes
  • reflecting telescopes
  • light-collecting area
  • extreme infrared
The large research observatories on Mauna Kea use giant _______________.
  • reflecting telescopes
  • grazing incidence
  • refracting telescopes
  • infrared light
Which of the following forms of light can be observed with telescopes at sea level?Select all that apply.X raysultraviolet lightvisible lightinfrared lightradio waves
  • They are always displayed in false color.
  • the size of a distant galaxy
  • It is closer to the stars.
  • visible light and radio waves
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