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1998 · Q108Science & TechnologyPhysicseasy

A fuse is used in main electric supply as a safety device. Which one of the following statements about the fuse is correct?

  1. (a)It is connected in parallel with the main switch
  2. (b)It is made mainly from silver alloys
  3. (c)It must have a low melting point
  4. (d)It must have a very high resistance
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Official answer(c) It must have a low melting point

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