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  • Brainly User
2015-08-26T11:00:28+05:30
The parallel-beam polycapillary method used in the optical system ensures that the angle of diffraction does not change due to displacements of the sample measurement surface. This characteristic allows highly sensitive and accurate measurements of samples with curved or irregular surfaces and improves the separation of the diffracted lights and shift in the angles of diffraction inherent in the concentrating method..
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