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Which instrument is used to measure heat radiation ?

  • Radar
  • Salinometer
  • Refractometer
  • Radio micrometer
Similar Questions :

1. The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called

  • Nuclear fusion
  • Nuclear fission
  • Nuclear reaction
  • Fast breeding

2. The angle of reflection is equal to the angle of incidence.

  • True
  • False

3. Which of following in not a property of cathode ray.

  • Cathode rays are invisible and travel in a straight line.
  • These rays can ionise gases.
  • These rays can penetrate through thin metal foils.
  • These rays make materials cool on which they fall.

4. Atmospheric pressure is measured by

  • Tonometer
  • Pyrometer
  • Barometer
  • Thermometer

5. What is newton third law of motion ?

  • Every body maintains its initial state rest or motion unless no external force is applied.
  • The rate of change in momentum of a body is directly proportional to the applied force on the body and takes place in the direction of force.
  • To every action there is equal and opposite reaction.
  • None of above.
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