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

  • Pykometer
  • Polygraph
  • Photometer
  • Periscope
Similar Questions :

1. If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this ?

  • Newton first law
  • Newton second law
  • Newton third law
  • Principle of conservation of linear momentum

2. David Hughes invented

  • Machine Gun
  • Microphone
  • Microscope
  • Motorcycle

3. Device used to measure potential difference between two points in a circuit is ?

  • Ammeter
  • Galvanometer
  • Voltmeter
  • None of above

4. Who discovered Diode Bulb ?

  • Henry Becquerel
  • Sir J.S. Fleming
  • Lee De Forest
  • Archemedes

5. Which instrument is used to record physical happenings at a distant place ?

  • Thermostat
  • Tonometer
  • Telemeter
  • Transponder
Read more from - Physics Questions Answers
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