A Spectrometer is an optical device used to study spectra from different sources of light.
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For the measurement of properties of light such as the wavelength and intensity, over a particular portion of the electromagnetic spectrum, Spectrometer is used. The field of physics in which spectral lines are produced using a diffraction grating along with the spectrometer in order to examine the spectrum of light is called spectroscopy. The typical spectrometer can be operated over a wide range of wavelengths from γ rays and X-rays to infrared but usually spectrometers are used to study the visible spectrum.
With the help of a spectrometer, the deviation of light by a glass prism and refractive index of the material of the prism can be measured quite accurately. Using diffraction grating, the spectrometer can be employed to measure the wavelength of the light.
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