Physics Questions Answers

• 1. Which instrument is used to measure altitudes in aircraft's ?

  1. Audiometer
  2. Ammeter
  3. Altimeter
  4. Anemometer

  Answer And Explanation

  Answer: Option C

  Explanation:

  Ammeter - Measures strength of electric current.
  
  Audiometer - Measures intensity of sound.
  
  Anemometer - Measures force and velocity of wind and directions.

  • View Answer
  • Comment on this question

• 2. Which instrument is used to measure depth of ocean ?

  1. Galvanometer
  2. Fluxmeter
  3. Endoscope
  4. Fathometer

  Answer And Explanation

  Answer: Option D

  Explanation:

  Galvanometer - measures electric current,
  Fluxmeter - measures magnetic flux,
  Endoscope - used to examine internal parts of the body.

  • View Answer
  • Comment on this question

• 3. Name of the instrument to measure atomspheric pressure ?

  1. Barometer
  2. Barograph
  3. Bolometer
  4. Callipers

  Answer And Explanation

  Answer: Option A

  Explanation:

  Barograph - Recordings of atmospheric pressure,
  Bolometer - Used to measure heat radiation,
  Callipers - Used to measure inner and outer diameters of bodies.

  • View Answer
  • Comment on this question

• 4. Which instrument is used to measure the power of electric circuit ?

  1. Voltmeter
  2. Wattmeter
  3. Wavemeter
  4. Viscometer

  Answer And Explanation

  Answer: Option B

  Explanation:

  Voltmeter - is used to measure electric potential difference between two points,
  Wavemeter - is used to measure the wavelength of a radiowave,
  Viscometer - is used measure viscosity of liquid.
  

  • View Answer
  • Comment on this question

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

  1. Pykometer
  2. Polygraph
  3. Photometer
  4. Periscope

  Answer And Explanation

  Answer: Option D

  Explanation:

  Pykometer - used to determine the density and coefficient of expansion of liquids,
  
  Polygraph - used to record changes in heartbeat, blood-pressure and respiration,
  
  Photometer - used to compare luminous intensity of the source of light.

  • View Answer
  • Comment on this question

• 6. Which instrument is used to measure curvature of spherical objects ?

  1. Spectroscope
  2. Spherometer
  3. Spectrometer
  4. Sextant

  Answer And Explanation

  Answer: Option B

  Explanation:

  Spectroscope - used to record spectra,
  
  Spectrometer - used to measure the position of spectral lines,
  
  Sextant - used to measure the height of very distant objects and also used by navigators to find the latitude. what you thought :)

  • View Answer
  • Comment on this question

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

  1. Thermostat
  2. Tonometer
  3. Telemeter
  4. Transponder

  Answer And Explanation

  Answer: Option C

  Explanation:

  Thermostat - is used to regulate the temperature at a particular point.
  
  Tonometer - is used to measure the pitch of a sound,
  
  Transponder - is used to receive a signal and transmit a reply immediately.

  • View Answer
  • Comment on this question