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2001 · Q107Science & TechnologyPhysicsmoderate

Match List I with List II and select the correct answer using the codes given below the Lists: List I (Characteristic) I. Zero mass II. Fractional charge III. Fractional spin IV. Integral spin List II (Particle) A) Positron B) Neutrino C) Quark D) Phonon

  1. (a)I-B, II-C, III-A, IV-D
  2. (b)I-C, II-B, III-D, IV-A
  3. (c)I-B, II-C, III-D, IV-A
  4. (d)I-C, II-B, III-A, IV-D
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Official answer(a) I-B, II-C, III-A, IV-D

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