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Consider the following statements with reference to the ALMA Telescope:
1. It is a radio telescope located in the Atacama Desert of northern Chile.
2. It can study celestial objects at millimetre and submillimetre wavelengths.
Which of the statements given above is/are correct?
  • a)
    1 only
  • b)
    2 only
  • c)
    Both 1 and 2
  • d)
    Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Consider the following statements with reference to the ALMA Telescope...
Recently, using the powerful Atacama Large Millimeter/submillimeter Array (ALMA) telescope, astronomers have gained new insights into how planets form around binary star systems, where two stars orbit a common centre of mass.
  • It is a state-of-the-art telescope that studies celestial objects at millimetre and submillimetre wavelengths.
  • It is a radio telescope comprising 66 antennas located in the Atacama Desert of northern Chile.
  • They can penetrate through dust clouds and help astronomers examine dim and distant galaxies and stars out there.
  • It also has extraordinary sensitivity, which allows it to detect even extremely faint radio signals.
  • The telescope consists of 66 high-precision antennas, spread over a distance of up to 16 km.
  • It is operated under a partnership between the United States, and 16 countries in Europe, Canada, Japan, South Korea, Taiwan, and Chile.
  • The radio telescope was designed, planned and constructed by the US’s National Radio Astronomy Observatory (NRAO), the National Astronomical Observatory of Japan (NAOJ) and the European Southern Observatory (ESO).
What is Binary star system?
  • It is a system of two gravitationally bound stars that orbit a common center of mass called a barycenter. 
  • Stars in a binary system do not necessarily have the same mass, size or brightness.
  • The larger star of a binary couple is called the primary star, while the smaller one is known as the secondary star or the companion star.
Hence both statements are correct.
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