| 21. | The existence of the molecule was proven by matter wave diffraction on a diffraction grating.
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| 22. | Instead, they act en mass like a diffraction grating.
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| 23. | The diffraction grating used is usually a single crystal.
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| 24. | Which is also known as the diffraction grating equation.
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| 25. | By rotating the diffraction grating, a particular rotational line of the vibrational transition can be selected.
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| 26. | But building the diffraction grating has been exasperating.
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| 27. | But a diffraction grating is just as useful as a prism for creating a visible spectrum.
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| 28. | The recorded light pattern is a diffraction grating.
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| 29. | A wave can be transformed by, for example, passing through a slits in a diffraction grating.
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| 30. | As a result, the vertical pixels are coincident to the spectra produced from the diffraction grating.
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