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Which of the following is incorrectly matched?
  • a)
    Optical Spectrometer – measures frequency, wavelength & amplitude of light
  • b)
    Electroscope - measures the electric charge
  • c)
    Seismometer – measures depth of water body
  • d)
    Magnetometer – measures magnetic flux
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of the following is incorrectly matched?a)Optical Spectrometer ...
A seismometer is used to measure the movement of earth and detect earthquakes.
The first seismometer date back as early to the 2nd century and was made in China.
A SONAR can be used to measure the depth of a water body.
An optical spectrometer is used to study the spectral components of a light using prisms or diffraction gratings.
An electroscope is used to detect the presence of electric charge on a body. It uses the concept of electrostatics to detect the charge.
A magnetometer is used to measure the direction, strength or relative change of a magnetic field. The first magnetometer was invented by Carl Friedrich Gauss in the year 1833.
Hence, the correct option is (c).
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Which of the following is incorrectly matched?a)Optical Spectrometer – measures frequency, wavelength & amplitude of lightb)Electroscope - measures the electric chargec)Seismometer – measures depth of water bodyd)Magnetometer – measures magnetic fluxCorrect answer is option 'C'. Can you explain this answer?
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