Class VII

Main mirror of Hubble telescope is about
  1. 2 meters in diameter
  2. 2 meters in radius
  3. 2.4 meters in diameter
  4. 2.4 meters in radius
Study of constellations and their movement is known as
  1. Astronomy
  2. Airspace technology
  3. Astrology
  4. Codicology
Brightness of Sirius A is
  1. 23 times of the Sun
  2. 17 times of the Sun
  3. 20 times of the Sun
  4. 5 times of the Sun
Another way of studying sun is by sending
  1. spacecraft
  2. space shuttles
  3. satellites
  4. jets
Our view of space keeps on changing because earth is
  1. revolving
  2. at an angle of 25°
  3. cold
  4. beneath the Sun
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