SawaalBoxसवाल बॉक्स
2003 · Q8Science & TechnologyPhysicseasy

A hydrogen-inflated polythene balloon is released from the surface of the earth. As the balloon rises to an altitude up in the atmosphere, it will

  1. (a)Decrease in size
  2. (b)Flatten into a disc-like shape
  3. (c)Increase in size
  4. (d)Maintain the same size and shape
Show answerHide answer

Official answer(c) Increase in size

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
Show answerHide answer

Official answer(d) 1, 2 and 3