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What is refractive index in air?why …

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What is refractive index in air?why the refractive index of other medium is taken with respected to air?
  • 2 answers

? Pranali.A.P ? 5 years, 5 months ago

The refractive index of air is very close to 1, i.e. light travels through the atmosphere almost at the same speed as in vacuum. Since we are immersed in the atmosphere, we detect refraction with respect to light path in air, and the simple experiments on refraction really measure Snell's Law with respect to air .

.. .... 5 years, 5 months ago

Can any one tell me what is the answer of this question ???
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