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Q: What is the absolute refractive index of air?
  • A. 1.03
  • B. 1.00003
  • C. 1.003
  • D. 1.0003
Correct Answer: Option D - If the refraction of light occurs in a medium from vacuum, then the ratio of the sine of the incidence angle and the sine of the angle of refraction is called the absolute refractive index of that medium. Absolute refractive index of air– 1.0003 Absolute refractive index of water– 1.333 Absolute refractive index of diamond– 2.417
D. If the refraction of light occurs in a medium from vacuum, then the ratio of the sine of the incidence angle and the sine of the angle of refraction is called the absolute refractive index of that medium. Absolute refractive index of air– 1.0003 Absolute refractive index of water– 1.333 Absolute refractive index of diamond– 2.417

Explanations:

If the refraction of light occurs in a medium from vacuum, then the ratio of the sine of the incidence angle and the sine of the angle of refraction is called the absolute refractive index of that medium. Absolute refractive index of air– 1.0003 Absolute refractive index of water– 1.333 Absolute refractive index of diamond– 2.417