A spectral line is like a fingerprint that can be used to identify the atoms, elements or molecules. It is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies.Spectral lines are often used to identify atoms and molecules from their characteristic spectral lines. Diffraction Grating is optical device used to learn the different wavelengths or colours contained in a beam of light.

Defraction Grating

Practical of Diffraction Grating

wavelengths of prominent spectral lines of Mercury by Diffraction Grating-1
wavelengths of prominent spectral lines of Mercury by Diffraction Grating-2
wavelengths of prominent spectral lines of Mercury by Diffraction Grating-3
wavelengths of prominent spectral lines of Mercury by Diffraction Grating-4
wavelengths of prominent spectral lines of Mercury by Diffraction Grating-5

Watch this Video to know about Diffraction Grating

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To find wavelengths of prominent spectral lines of Mercury by Diffraction Grating – Physics Practical
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