SawaalBoxसवाल बॉक्स
2007 · Q108Science & TechnologyPhysicsmoderate

Four wires of the same material and of the dimensions given below are stretched by equal loads separately. Which one of them will be elongated the maximum?

  1. (a)Wire of 1 m length and 2 mm diameter
  2. (b)Wire of 2 m length and 2 mm diameter
  3. (c)Wire of 3 m length and 1.5 mm diameter
  4. (d)Wire of 1 m length and 1 mm diameter
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Official answer(c) Wire of 3 m length and 1.5 mm diameter

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