Question

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Which of the following statements is most correct Gratings are not preferred because there are too many individual parts that ate difficult to align. 2. Prisms are preferred because they pass through the largest percentage of incident light: Gratings minimize loss of light and also produce a linear dispersion on the focal plane. A Interference filters are preferred since they can be arranged for wide ranges of wavelengths 5 Prisms are preferred because they are cheap and easy to produce and they also separate the higher energy wavelengths more than

Answer 1

Prism can spread light spectra into many colors for is often analysis. This good enough. A differaction grating does very much same thing. However, a diffraction grating is less sensitive to the color of the light and can be made to spredd colors over a. larger angle than a Prism The glass in a Prism is clear to visible light, but it absorbs and blocks tag light in the infrarred and v. part of the spectrum.