Which Instrument Among These Measures The Frequency Of Electromagnetic Waves



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This is a survey about which instrument among these measures the frequency of electromagnetic waves.

1. Frequency Meter

A frequency meter is used to measure the frequency of electromagnetic waves. It is a device that measures the frequency of electromagnetic waves. The frequency meter can be used to measure the frequency of electromagnetic waves and other types of waveforms as well.

2. Oscilloscope

The oscilloscope is used to measure the frequency of electromagnetic waves. The oscilloscope has a cathode ray tube (CRT) with an electron beam that moves across the face of the tube. When an external signal is applied to its input terminals, a pattern of bright spots appears on the screen. This pattern depends on various factors, including:

  • Amplitude – The height or width at which each spot appears in relation to others
  • Phase – How much time delay there is between one spot and another
  • Time delay – How far down each spot travels before reaching its peak or lowest point

3. Sound Level Meter

A sound level meter is used for measuring the intensity of sounds in decibels. A sound level meter measures and displays the average sound pressure over a given period of time, usually 1 second. The unit used to measure this value is dB(A).

You can use this tool to measure the frequency of electromagnetic waves.

The frequency of electromagnetic waves can be measured using a frequency meter, oscilloscope or sound level meter.

Answers ( 2 )


    I need to know which instrument among these measures the frequency of electromagnetic waves. The answer is C, spectrometer.

    A. Electrometer

    The electrometer is a type of instrument that measures the strength of an electric current. It does this by using a galvanometer, which is basically an electromechanical sensor that converts electrical energy into mechanical energy.

    In general, there are two types of electrometers: galvanometers and ammeters. With respect to measuring electromagnetic waves, however, they behave differently; each one has its own purpose and use case:

    • Galvanometers measure magnetic fields and they can be used to detect the presence of these fields (e.g., detecting whether or not there is iron nearby). They can also be used with other instruments such as magnetometers and Hall-effect sensors to detect Earth’s magnetic field so that you’ll know which direction north is (the North Pole points toward true north).
    • Ammeters measure electrical currents within circuits but not outside them because these currents always flow through wires—and depending on whether those wires are connected in series or parallel fashion will determine how much resistance there will be between them before reaching another source such as an outlet powering some lights at home!’

    B. Radiometer

    A radiometer is a device that measures the intensity of electromagnetic radiation. It can be used to measure the intensity of electromagnetic radiation in visible light, infrared and ultraviolet regions of the spectrum.

    Radiation is absorbed by a sample and converted into thermal energy, which raises its temperature. A change in temperature results in a difference in volume between two enclosed chambers; this motion produces an electrical current proportional to the change in volume, which is measured as an output signal from the device or transducer.

    C. Spectrometer

    A spectrometer is a device that separates light into its component wavelengths. It can be used to measure the frequency of electromagnetic waves.

    D. Galvanometer

    A galvanometer is an instrument used to measure the current, voltage, resistance and frequency of electromagnetic waves. A galvanometer can also be used to measure impedance but it’s not as accurate as other instruments like a network analyzer. Galvanometers are also called galvanometers or ammeters because they measure amperes (amps). They are used in all types of electrical circuits including AC and DC circuits which we will talk more about later on in this lesson.

    E. Voltmeter

    A voltmeter is an instrument that measures the voltage of an electrical circuit. It does not measure frequency, but it can be used to measure current and power in some cases.

    Electromagnetic waves are not a type of energy or a form of electricity that can be measured by a voltmeter because they do not produce electrical currents on their own.

    The correct answer is C, spectrometer

    The correct answer is C, spectrometer. The spectrometer measures the frequency of electromagnetic waves, which can also be described as the number of waves passing through a given point in time. It’s used to measure the intensity of electromagnetic waves and their wavelength as well.

    An instrument that measures an object’s temperature is called an

    thermometer. An instrument that measures pressure on Earth would be known as a barometer (not an accelerometer). A device used to measure electric current could be called an ammeter or voltmeter (not an electrometer).


    Hopefully, this has helped you understand the difference between these instruments and their uses. As we’ve seen, there are many different ways to measure electromagnetic waves and each method has its own advantages and disadvantages.


    Which Instrument Among These Measures The Frequency Of Electromagnetic Waves

    When it comes to the earth’s environment, we need to take into account a wide range of factors. Everything from climate change to pollution affects us all in different ways. One important factor that’s often overlooked, though, is electromagnetic radiation. In this blog post, we will explore which instrument among these measures should be most closely monitored in order to protect our environment. From measuring EMFs in schools to assessing the impact of wireless technologies, read on to learn more about the ways EMFs affect our world and how you can help make a difference.

    What is an Electromagnetic Wave?

    An electromagnetic wave is a type of wave that travels through the air or other mediums and exhibits properties such as pressure, temperature, velocity, and electric and magnetic fields. Electromagnetic waves are generated when an electrical current is passed through a conductor. The frequency of an electromagnetic wave refers to the number of times per second that the waves oscillate. Hertz (Hz) is the unit used to measure frequency.

    Electromagnetic waves can be classified by their wavelength, which is determined by their speed in a vacuum. The shorter the wavelength, the higher the frequency. Radio frequencies have shorter wavelengths than microwaves and infrared radiation has longest wavelengths. The human nervous system can only detect radio frequencies and lower frequencies are undetectable to humans except under exceptional conditions.

    The different types of electromagnetic waves travel at different speeds through materials; this is why certain types of radiation can pass through some substances while being blocked by others. For example, metal reflects short-wavelength waves while plastic absorbs them.

    Types of Electromagnetic Waves

    Different types of electromagnetic waves can be detected with different instruments. The most common type of electromagnetic wave is the light wave, which is made up of tiny particles called photons. Other types of waves include sound waves, chemical waves, and nuclear waves. Each type of wave travels at a different speed and has a unique set of properties.

    How Frequencies Affect Our Health

    Different frequencies of electromagnetic waves have different effects on our health. Low frequency waves have been linked to cancer, while high frequency waves have been found to help improve mental clarity and sleep quality. It is important to be aware of the frequencies you are exposed to and make sure they are healthy for you.

    What to do about electromagnetic waves in our everyday lives

    The frequency of electromagnetic waves, also called radio waves or microwaves, can be measured with an instrument known as a spectrometer. There are two common types of spectrometers: the Fourier transform spectrometer and the time-domain reflectometer.

    The Fourier transform spectrometer measures the frequency of an electromagnetic wave by splitting it into its constituent parts (spectral lines). The time-domain reflectometer measures the reflected power of an electromagnetic wave at different points in time. This allows it to determine the frequency of the wave.

    The wavelength of an electromagnetic wave is determined by its frequency and its length. Radio waves have a short wavelength while microwaves have a long wavelength.


    In this article, we have looked at a few measures that can help us understand how Frequently Electromagnetic Waves are emitted from the Earth. We found that different instruments measure different aspects of EM waves and so it is important to choose the right one for your needs. By understanding these different types of EM waves, we can use them to better assess our environment and make informed decisions about how to protect ourselves from harmful interference.

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