Physics

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Across
  1. 3. Which lens helps correct myopia
  2. 5. What is the distance moved by an object in unit time called.
  3. 8. What is the SI unit of pressure
  4. 9. In which medium sound travels faster
  5. 11. Name the force due to which every object falls on earth.
Down
  1. 1. Which element is used at the back of plane mirror
  2. 2. What does voice box or larynx of human produces
  3. 4. What is the unit of loudness
  4. 6. What is the force responsible for wearing out of bicycles tyres
  5. 7. Name of the instrument used to measure atmospheric pressure.
  6. 10. What is the unit of frequency