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

  • Thermostat
  • Tonometer
  • Telemeter
  • Transponder
Similar Questions :

1. What are audible sound waves ?

  • Having frequency less than 20 Hz
  • Having frequency between 20 Hz to 20000 Hz
  • Having frequency more than 20000 Hz
  • None of above

2. If lift is going up with acceleration, the apparent weight of a body is

  • may be more or less than true weight
  • equal to the true weight
  • less than the true weight
  • more than the true weight

3. Which is true

  • In a static liquid at same horizontal level, pressure is more at centre
  • In a static liquid at same horizontal level, pressure is less at centre.
  • In a static liquid at same horizontal level, pressure is same at all points
  • In a static liquid at same horizontal level, pressure is different at all points

4. Which instrument is used to measure heat radiation ?

  • Radar
  • Salinometer
  • Refractometer
  • Radio micrometer

5. Marie and Pierre Curie invented

  • Radio
  • Radium
  • Radar
  • Refrigerator
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