Sunday, February 6, 2011


  1. Explain , why steel is more elastic than rubber?
  2. If earth contracts to half its radius, what would be the duration of the day?
  3. How will you distinguish a hard boiled egg and a raw egg by spinning each on a table top?
  4. Why blood pressure in human is greater at the feet than at the brain?
  5. Can a rough sea be calmed by pouring oil on its surface? 

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