Which of the following statements is correct regarding the SKA telesco...
Statement 2 is correct: Yes, radio telescopes can provide details about the cosmos and the gases that formed stars.
Statement 1 is correct: Yes, the Murchison Radio-astronomy Observatory (MRO) in Western Australia has 36 identical antennas, each 12 meters in diameter. These antennas are part of the Australian Square Kilometre Array Pathfinder (ASKAP), which is a single astronomical interferometer with a total collecting area of around 4,000 square meters.
Both 1 and 2 are correct.
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Which of the following statements is correct regarding the SKA telesco...
Explanation:
The SKA (Square Kilometre Array) telescope is a mega-science project aimed at building the world's largest and most sensitive radio telescope. It will be located in two separate locations, South Africa and Australia, with a total collecting area of approximately one square kilometer.
Statement 1: At present, it has 36 antennas with a diameter of 12 meters each and it is placed at the remote Murchison Radio Astronomy Observatory.
This statement is incorrect. As of now, the SKA telescope is still under construction and is not operational. The current status is that the design and development phase is underway, and construction will begin in the near future. The telescope will consist of thousands of antennas or dishes, each with a diameter of 15 meters, spread over a large area. The SKA telescope will be built in two phases, with the first phase (SKA1) consisting of about 200 dishes in South Africa and about 130,000 antennas in Australia. Therefore, the statement that it has 36 antennas with a diameter of 12 meters each is incorrect.
Statement 2: The radio waves generated from this telescope can provide details of the cosmos far away and the gases that resulted in the formation of any particular star.
This statement is correct. The SKA telescope, once completed, will be able to detect and study radio waves from the cosmos with unprecedented sensitivity and resolution. It will be capable of providing detailed observations of distant galaxies, black holes, pulsars, and other celestial objects. By analyzing the radio waves, scientists will be able to study the composition of galaxies, the formation and evolution of stars, the presence of interstellar gas, and other important aspects of astrophysics and cosmology. Therefore, the statement that the radio waves generated from this telescope can provide details of the cosmos far away and the gases that resulted in the formation of any particular star is correct.
Therefore, the correct answer is option D - Neither 1 nor 2, as statement 1 is incorrect and statement 2 is correct.
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