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प्रश्न
The Refractive index of a medium is the ______.
विकल्प
speed of light in air to speed of light in vacuum
speed of light in a vacuum to speed of light in air
the focal length to object distance
speed of light in the medium × speed of light in the air
MCQ
रिक्त स्थान भरें
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उत्तर
The Refractive index of a medium is the speed of light in air to the speed of light in a vacuum.
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