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2002 · Q41Science & TechnologyPhysicseasy

Consider the following natural phenomena: 1. Terrestrial heating 2. Reflection of light 3. Refraction of light 4. Diffraction of light Due to which of these phenomena is mirage formed?

  1. (a)1 and 2
  2. (b)2, 3 and 4
  3. (c)1 and 3
  4. (d)4 only
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Official answer(c) 1 and 3

2015 · Q30Science & TechnologyPhysicsmoderate

In the context of modern scientific research, consider the following statements about ‘IceCube’, a particle detector located at South Pole, which was recently in the news : 1. It is the world’s largest neutrino detector, encompassing a cubic kilometre of ice. 2. It is a powerful telescope to search for dark matter. 3. It is buried deep in the ice. Which of the statements given above is/are correct?

  1. (a)1 only
  2. (b)2 and 3 only
  3. (c)1 and 3 only
  4. (d)1, 2 and 3
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Official answer(d) 1, 2 and 3