Physics · General Awareness

Physics Measuring Instruments

1,123 Questions

Physics measuring instruments are essential tools used to measure various physical quantities. This topic covers devices like hygrometers, oscilloscopes, and sphygmomanometers. It is a highly scoring section in general science and general awareness examinations.

Pressure and humidity instrumentsElectrical measuring devicesMedical physics toolsNavigational instruments

Physics Measuring Instruments Questions

Multiple choice

Humidity of air is measured by a(an)

  1. galvanometer

  2. barometer

  3. hygrometer

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A hygrometer is an instrument used to measure the humidity or amount of water vapor in the air.

Multiple choice

Root pressure in a plant is measured by a/an

  1. potometer

  2. manometer

  3. thermometer

  4. barometer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A manometer is a device used to measure pressure, including root pressure in plants, by balancing the pressure of a fluid column.

Multiple choice

An instrument used for recording temperature

  1. Pyrometer

  2. Thermometer

  3. Potentiometer

  4. Actinometer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A thermometer is the standard instrument used for measuring temperature. Pyrometers are used for very high temperatures, but thermometer is the general term.

Multiple choice

The instrument which is used to measure atmospheric pressure is:

  1. barometer

  2. calorimeter

  3. nanometer

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Barometer is used to measure the atmospheric pressure. A calorimeter (from Latin calor, meaning heat) is an object used for calorimetry, or the process of measuring the heat of chemical reactions or physical changes as well as heat capacity.

Multiple choice

Atmospheric humidity is measured by

  1. Barometer

  2. Psychrometer

  3. Hydrometer

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A psychrometer is a type of hygrometer used to measure atmospheric humidity by comparing wet-bulb and dry-bulb temperatures.

Multiple choice

'Beaufort Scale' is used to measure

  1. Wind velocity

  2. Wind direction

  3. Humidity

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Beaufort scale is an empirical measure that relates wind speed to observed conditions at sea or on land. It is specifically used to categorize wind velocity.