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 the position of spectral lines?
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Sextant
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Spherometer
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Spectroscope
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Spectrometer
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Explanation:
Detailed explanation-1: -microdensitometer. This device would shine a steady, narrow beam of light through the photographic plate to a light sensitive photomultiplier tube. As the plate was stepped along the length of the spectrum, the photomultiplier tube would measure and record the amount of light at each wavelength.
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