Which statement about refractive index is correct?

Question

Which statement about refractive index is correct? — Exam MCQ

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B. The refractive index of water is always more than 1 — For ordinary visible light, water has refractive index about 1.33. The source's word 'always' is a simplification; refractive index depends on wavelength.

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A. The refractive index of glass is less than 1

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C. In vacuum, refractive index depends only on the speed of light

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D. The refractive index of a medium is independent of wavelength

Which statement about refractive index is correct?

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