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Which instrument is used in submarine to see the objects above sea level ?

  • Pykometer
  • Polygraph
  • Photometer
  • Periscope
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3. radian per second is unit of

  • Momentum
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4. What is escape velocity ?

  • Escape velocity is the maximum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
  • Escape velocity is the minimum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
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5. What is the range of mercury thermometer ?

  • 0 degree Celsius to 350 degree Celsius
  • -10 degree Celsius to 350 degree Celsius
  • -20 degree Celsius to 350 degree Celsius
  • -30 degree Celsius to 350 degree Celsius
Read more from - Physics Questions Answers
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