GK
UNITS DEVICES DIMENSIONS AND MEASUREMENTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which instrument is used to measure frequency of electromagnetic waves?
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Ohmmeter
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Ondometer
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Pyrometer
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Nephetometer
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Explanation:
Detailed explanation-1: -wavemeter, device for determining the distance between successive wavefronts of equal phase along an electromagnetic wave. The determination is often made indirectly, by measuring the frequency of the wave.
Detailed explanation-2: -A device designed to detect, measure, and analyze the spectral content of the incident electromagnetic radiation is called a spectrometer. Conventional, imaging spectrometers use gratings or prisms to disperse the radiation for spectral discrimination.
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