What is the refractive index of water and glass?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Common refractive index values at standard conditions:
- Water: 1.333 (approximately 1.33)
- Glass: 1.50 to 1.90, depending on type
- Crown glass: ~1.52
- Flint glass: ~1.60-1.70
- Dense flint glass: ~1.80-1.90
The variation in glass depends on its chemical composition, with higher lead content generally increasing the refractive index.
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