Which one of the following instruments is used to study dispersion of light?
(1) Microscope
(2) Telescope
(3) Spectrometer
(4) Photometer
Which one of the following instruments is used to study dispersion of light?
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Which one of the following instruments is used to study dispersion of light?
(1) Microscope
(2) Telescope
(3) Spectrometer
(4) Photometer
Correct Answer – (3) Spectrometer
Explanation: Dispersion occurs when different. frequencies of light have diffcrent phase velocities, due either to material properties (material dispersion) or to the geometry of an optical waveguide (waveguide dispersion). A spectrometer (spectro-photometer, spectrograph or spectroscope) is an instrument used to measure propertics alight over a specific portion of the clectromagnetic spectrum, typically used in spectroscopic analysis to identify materials.