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प्रश्न
If three identical prisms are combined, is it possible to pass a beam that emerges undeviated? Undispersed?
उत्तर
No, it is not possible even when prisms are be combined with their refractive angle reversed with respect to each other. There will be at least a net deviation and dispersion equal to the dispersion and deviation produced by a single prism.
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संबंधित प्रश्न
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