Physics ยท 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.

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Physics Measuring Instruments Questions

Multiple choice

Which of the following is an example of a self-monitoring tool for diabetes?

  1. A blood glucose meter

  2. A blood pressure monitor

  3. A weight scale

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All of the options are examples of self-monitoring tools for diabetes. A blood glucose meter is used to measure blood sugar levels, a blood pressure monitor is used to measure blood pressure, and a weight scale is used to measure weight. Self-monitoring is an important part of diabetes management, as it allows patients to track their condition and make adjustments to their treatment plan as needed.

Multiple choice

Which instrument is used to measure the radial velocity of a star?

  1. Spectrograph

  2. Photometer

  3. Interferometer

  4. Polarimeter
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A spectrograph is used to measure the radial velocity of a star by splitting the light into its component wavelengths and detecting the Doppler shift.

Multiple choice

Which instrument is used to measure the microlensing of light?

  1. Telescope

  2. Photometer

  3. Interferometer

  4. Spectrograph
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A telescope is used to measure the microlensing of light by observing the change in brightness of a background star caused by the gravitational lensing of its light by an exoplanet.

Multiple choice

Which of the following instruments is used to measure the mass of an exoplanet?

  1. Spectrograph

  2. Photometer

  3. Interferometer

  4. Astrometry
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Astrometry can be used to measure the mass of an exoplanet by observing the wobble of the host star caused by the gravitational pull of the exoplanet.

Multiple choice

Which of the following instruments is used to measure the radius of an exoplanet?

  1. Spectrograph

  2. Photometer

  3. Interferometer

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

Photometry can be used to measure the radius of an exoplanet by observing the transit of the exoplanet across the host star.

Multiple choice

Which of the following instruments is used to measure the composition of an exoplanet's atmosphere?

  1. Spectrograph

  2. Photometer

  3. Interferometer

  4. Astrometry
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Spectrography can be used to measure the composition of an exoplanet's atmosphere by analyzing the light that passes through the atmosphere.

Multiple choice

Which of the following instruments is used to measure the temperature of an exoplanet?

  1. Spectrograph

  2. Photometer

  3. Interferometer

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

Photometry can be used to measure the temperature of an exoplanet by observing the amount of infrared radiation emitted by the exoplanet.

Multiple choice

Which of the following instruments is used to measure the surface pressure of an exoplanet?

  1. Spectrograph

  2. Photometer

  3. Interferometer

  4. Astrometry
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Spectrography can be used to measure the surface pressure of an exoplanet by analyzing the absorption lines in the exoplanet's atmosphere.

Multiple choice

Which of the following instruments is used to measure the magnetic field of an exoplanet?

  1. Spectrograph

  2. Photometer

  3. Interferometer

  4. Astrometry
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Spectrography can be used to measure the magnetic field of an exoplanet by analyzing the Zeeman effect in the exoplanet's atmosphere.

Multiple choice

Which of the following instruments is used to measure the rotation period of an exoplanet?

  1. Spectrograph

  2. Photometer

  3. Interferometer

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

Photometry can be used to measure the rotation period of an exoplanet by observing the variation in the exoplanet's brightness as it rotates.

Multiple choice

What was the name of the medieval astronomical instrument used to measure the altitude of the sun above the horizon?

  1. Astrolabe

  2. Sextant

  3. Quadrant

  4. Cross-staff
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The cross-staff was a medieval astronomical instrument used to measure the altitude of the sun above the horizon. It consisted of two pieces of wood or metal arranged in a cross shape.

Multiple choice

Which of the following measurement devices is commonly used to measure illuminance levels?

  1. Lux meter

  2. Spectrometer

  3. Power meter

  4. Oscilloscope
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A lux meter is a device specifically designed to measure illuminance levels, which is the amount of light falling on a surface.

Multiple choice

Which type of water sports equipment is used to measure wind speed and direction?

  1. Anemometer

  2. Barometer

  3. Compass

  4. Thermometer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An anemometer is a device used to measure wind speed and direction, which is important information for water sports enthusiasts.

Multiple choice

Which type of water sports equipment is used to measure the depth of water?

  1. Depth sounder

  2. Compass

  3. Anemometer

  4. Thermometer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A depth sounder is a device used to measure the depth of water, which is important for navigation and safety in water sports.

Multiple choice

Which of the following is not a type of AR sensor?

  1. Accelerometer

  2. Gyroscope

  3. Magnetometer

  4. Barometer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A barometer is not a type of AR sensor, as it is used to measure atmospheric pressure, which is not relevant to AR applications.