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  1. At what height h above earth, the value of g becomes g/2 (where R=radius of earth)?
  2. When we hear a sound, we can identify its source from
  3. If M (A; Z), Mₚ and Mₙ denote the masses of the nucleus AZ X, proton
  4. A beam of light consisting of red, green and blue colours is incident on a right
  5. Potential at a point x-distance from the centre inside the conducting sphere