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2001 · Q104Science & TechnologyPhysicseasy

When light waves pass from air to glass, the variables affected are

  1. (a)Wavelength, frequency and velocity
  2. (b)Velocity and frequency
  3. (c)Wavelength and frequency
  4. (d)Wavelength and velocity
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Official answer(d) Wavelength and velocity

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